71e5d3b693cbb793cd58758420506c5207003485
[ffmpeg.git] / ffmpeg.c
1 /*
2  * FFmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcore/audioconvert.h"
40 #include "libavcore/parseutils.h"
41 #include "libavcore/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
49
50 #if CONFIG_AVFILTER
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
54 #endif
55
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/time.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
61 #include <windows.h>
62 #endif
63 #if HAVE_GETPROCESSMEMORYINFO
64 #include <windows.h>
65 #include <psapi.h>
66 #endif
67
68 #if HAVE_SYS_SELECT_H
69 #include <sys/select.h>
70 #endif
71
72 #if HAVE_TERMIOS_H
73 #include <fcntl.h>
74 #include <sys/ioctl.h>
75 #include <sys/time.h>
76 #include <termios.h>
77 #elif HAVE_CONIO_H
78 #include <conio.h>
79 #endif
80 #include <time.h>
81
82 #include "cmdutils.h"
83
84 #include "libavutil/avassert.h"
85
86 const char program_name[] = "FFmpeg";
87 const int program_birth_year = 2000;
88
89 /* select an input stream for an output stream */
90 typedef struct AVStreamMap {
91     int file_index;
92     int stream_index;
93     int sync_file_index;
94     int sync_stream_index;
95 } AVStreamMap;
96
97 /**
98  * select an input file for an output file
99  */
100 typedef struct AVMetaDataMap {
101     int  file;      //< file index
102     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
103     int  index;     //< stream/chapter/program number
104 } AVMetaDataMap;
105
106 typedef struct AVChapterMap {
107     int in_file;
108     int out_file;
109 } AVChapterMap;
110
111 static const OptionDef options[];
112
113 #define MAX_FILES 100
114 #if !FF_API_MAX_STREAMS
115 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
116 #endif
117
118 static const char *last_asked_format = NULL;
119 static AVFormatContext *input_files[MAX_FILES];
120 static int64_t input_files_ts_offset[MAX_FILES];
121 static double *input_files_ts_scale[MAX_FILES] = {NULL};
122 static AVCodec **input_codecs = NULL;
123 static int nb_input_files = 0;
124 static int nb_input_codecs = 0;
125 static int nb_input_files_ts_scale[MAX_FILES] = {0};
126
127 static AVFormatContext *output_files[MAX_FILES];
128 static AVCodec **output_codecs = NULL;
129 static int nb_output_files = 0;
130 static int nb_output_codecs = 0;
131
132 static AVStreamMap *stream_maps = NULL;
133 static int nb_stream_maps;
134
135 /* first item specifies output metadata, second is input */
136 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
137 static int nb_meta_data_maps;
138 static int metadata_global_autocopy   = 1;
139 static int metadata_streams_autocopy  = 1;
140 static int metadata_chapters_autocopy = 1;
141
142 static AVChapterMap *chapter_maps = NULL;
143 static int nb_chapter_maps;
144
145 /* indexed by output file stream index */
146 static int *streamid_map = NULL;
147 static int nb_streamid_map = 0;
148
149 static int frame_width  = 0;
150 static int frame_height = 0;
151 static float frame_aspect_ratio = 0;
152 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
153 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
154 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
155 static AVRational frame_rate;
156 static float video_qscale = 0;
157 static uint16_t *intra_matrix = NULL;
158 static uint16_t *inter_matrix = NULL;
159 static const char *video_rc_override_string=NULL;
160 static int video_disable = 0;
161 static int video_discard = 0;
162 static char *video_codec_name = NULL;
163 static unsigned int video_codec_tag = 0;
164 static char *video_language = NULL;
165 static int same_quality = 0;
166 static int do_deinterlace = 0;
167 static int top_field_first = -1;
168 static int me_threshold = 0;
169 static int intra_dc_precision = 8;
170 static int loop_input = 0;
171 static int loop_output = AVFMT_NOOUTPUTLOOP;
172 static int qp_hist = 0;
173 #if CONFIG_AVFILTER
174 static char *vfilters = NULL;
175 AVFilterGraph *graph = NULL;
176 #endif
177
178 static int intra_only = 0;
179 static int audio_sample_rate = 44100;
180 static int64_t channel_layout = 0;
181 #define QSCALE_NONE -99999
182 static float audio_qscale = QSCALE_NONE;
183 static int audio_disable = 0;
184 static int audio_channels = 1;
185 static char  *audio_codec_name = NULL;
186 static unsigned int audio_codec_tag = 0;
187 static char *audio_language = NULL;
188
189 static int subtitle_disable = 0;
190 static char *subtitle_codec_name = NULL;
191 static char *subtitle_language = NULL;
192 static unsigned int subtitle_codec_tag = 0;
193
194 static float mux_preload= 0.5;
195 static float mux_max_delay= 0.7;
196
197 static int64_t recording_time = INT64_MAX;
198 static int64_t start_time = 0;
199 static int64_t recording_timestamp = 0;
200 static int64_t input_ts_offset = 0;
201 static int file_overwrite = 0;
202 static AVMetadata *metadata;
203 static int do_benchmark = 0;
204 static int do_hex_dump = 0;
205 static int do_pkt_dump = 0;
206 static int do_psnr = 0;
207 static int do_pass = 0;
208 static char *pass_logfilename_prefix = NULL;
209 static int audio_stream_copy = 0;
210 static int video_stream_copy = 0;
211 static int subtitle_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
216 static int opt_shortest = 0;
217 static int video_global_header = 0;
218 static char *vstats_filename;
219 static FILE *vstats_file;
220 static int opt_programid = 0;
221 static int copy_initial_nonkeyframes = 0;
222
223 static int rate_emu = 0;
224
225 static int  video_channel = 0;
226 static char *video_standard;
227
228 static int audio_volume = 256;
229
230 static int exit_on_error = 0;
231 static int using_stdin = 0;
232 static int verbose = 1;
233 static int thread_count= 1;
234 static int q_pressed = 0;
235 static int64_t video_size = 0;
236 static int64_t audio_size = 0;
237 static int64_t extra_size = 0;
238 static int nb_frames_dup = 0;
239 static int nb_frames_drop = 0;
240 static int input_sync;
241 static uint64_t limit_filesize = 0;
242 static int force_fps = 0;
243 static char *forced_key_frames = NULL;
244
245 static float dts_delta_threshold = 10;
246
247 static unsigned int sws_flags = SWS_BICUBIC;
248
249 static int64_t timer_start;
250
251 static uint8_t *audio_buf;
252 static uint8_t *audio_out;
253 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
254
255 static short *samples;
256
257 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
258 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
259 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
260
261 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
262
263 struct AVInputStream;
264
265 typedef struct AVOutputStream {
266     int file_index;          /* file index */
267     int index;               /* stream index in the output file */
268     int source_index;        /* AVInputStream index */
269     AVStream *st;            /* stream in the output file */
270     int encoding_needed;     /* true if encoding needed for this stream */
271     int frame_number;
272     /* input pts and corresponding output pts
273        for A/V sync */
274     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
275     struct AVInputStream *sync_ist; /* input stream to sync against */
276     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
277     AVBitStreamFilterContext *bitstream_filters;
278     /* video only */
279     int video_resample;
280     AVFrame pict_tmp;      /* temporary image for resampling */
281     struct SwsContext *img_resample_ctx; /* for image resampling */
282     int resample_height;
283     int resample_width;
284     int resample_pix_fmt;
285
286     /* full frame size of first frame */
287     int original_height;
288     int original_width;
289
290     /* forced key frames */
291     int64_t *forced_kf_pts;
292     int forced_kf_count;
293     int forced_kf_index;
294
295     /* audio only */
296     int audio_resample;
297     ReSampleContext *resample; /* for audio resampling */
298     int resample_sample_fmt;
299     int resample_channels;
300     int resample_sample_rate;
301     int reformat_pair;
302     AVAudioConvert *reformat_ctx;
303     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
304     FILE *logfile;
305 } AVOutputStream;
306
307 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
308 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
309
310 typedef struct AVInputStream {
311     int file_index;
312     int index;
313     AVStream *st;
314     int discard;             /* true if stream data should be discarded */
315     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
316     int64_t sample_index;      /* current sample */
317
318     int64_t       start;     /* time when read started */
319     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
320                                 is not defined */
321     int64_t       pts;       /* current pts */
322     PtsCorrectionContext pts_ctx;
323     int is_start;            /* is 1 at the start and after a discontinuity */
324     int showed_multi_packet_warning;
325     int is_past_recording_time;
326 #if CONFIG_AVFILTER
327     AVFilterContext *output_video_filter;
328     AVFilterContext *input_video_filter;
329     AVFrame *filter_frame;
330     int has_filter_frame;
331     AVFilterBufferRef *picref;
332 #endif
333 } AVInputStream;
334
335 typedef struct AVInputFile {
336     int eof_reached;      /* true if eof reached */
337     int ist_index;        /* index of first stream in ist_table */
338     int buffer_size;      /* current total buffer size */
339     int nb_streams;       /* nb streams we are aware of */
340 } AVInputFile;
341
342 #if HAVE_TERMIOS_H
343
344 /* init terminal so that we can grab keys */
345 static struct termios oldtty;
346 #endif
347
348 #if CONFIG_AVFILTER
349
350 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
351 {
352     AVFilterContext *last_filter, *filter;
353     /** filter graph containing all filters including input & output */
354     AVCodecContext *codec = ost->st->codec;
355     AVCodecContext *icodec = ist->st->codec;
356     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
357     char args[255];
358     int ret;
359
360     graph = avfilter_graph_alloc();
361
362     snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
363              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE);
364     ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
365                                        "src", args, NULL, graph);
366     if (ret < 0)
367         return ret;
368     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
369                                        "out", NULL, &ffsink_ctx, graph);
370     if (ret < 0)
371         return ret;
372     last_filter = ist->input_video_filter;
373
374     if (codec->width  != icodec->width || codec->height != icodec->height) {
375         snprintf(args, 255, "%d:%d:flags=0x%X",
376                  codec->width,
377                  codec->height,
378                  (int)av_get_int(sws_opts, "sws_flags", NULL));
379         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
380                                                 NULL, args, NULL, graph)) < 0)
381             return ret;
382         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
383             return ret;
384         last_filter = filter;
385     }
386
387     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
388     graph->scale_sws_opts = av_strdup(args);
389
390     if (vfilters) {
391         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
392         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
393
394         outputs->name    = av_strdup("in");
395         outputs->filter_ctx = last_filter;
396         outputs->pad_idx = 0;
397         outputs->next    = NULL;
398
399         inputs->name    = av_strdup("out");
400         inputs->filter_ctx = ist->output_video_filter;
401         inputs->pad_idx = 0;
402         inputs->next    = NULL;
403
404         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
405             return ret;
406         av_freep(&vfilters);
407     } else {
408         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
409             return ret;
410     }
411
412     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
413         return ret;
414
415     codec->width  = ist->output_video_filter->inputs[0]->w;
416     codec->height = ist->output_video_filter->inputs[0]->h;
417
418     return 0;
419 }
420 #endif /* CONFIG_AVFILTER */
421
422 static void term_exit(void)
423 {
424     av_log(NULL, AV_LOG_QUIET, "");
425 #if HAVE_TERMIOS_H
426     tcsetattr (0, TCSANOW, &oldtty);
427 #endif
428 }
429
430 static volatile int received_sigterm = 0;
431
432 static void
433 sigterm_handler(int sig)
434 {
435     received_sigterm = sig;
436     term_exit();
437 }
438
439 static void term_init(void)
440 {
441 #if HAVE_TERMIOS_H
442     struct termios tty;
443
444     tcgetattr (0, &tty);
445     oldtty = tty;
446     atexit(term_exit);
447
448     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
449                           |INLCR|IGNCR|ICRNL|IXON);
450     tty.c_oflag |= OPOST;
451     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
452     tty.c_cflag &= ~(CSIZE|PARENB);
453     tty.c_cflag |= CS8;
454     tty.c_cc[VMIN] = 1;
455     tty.c_cc[VTIME] = 0;
456
457     tcsetattr (0, TCSANOW, &tty);
458     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
459 #endif
460
461     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
462     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
463 #ifdef SIGXCPU
464     signal(SIGXCPU, sigterm_handler);
465 #endif
466 }
467
468 /* read a key without blocking */
469 static int read_key(void)
470 {
471 #if HAVE_TERMIOS_H
472     int n = 1;
473     unsigned char ch;
474     struct timeval tv;
475     fd_set rfds;
476
477     FD_ZERO(&rfds);
478     FD_SET(0, &rfds);
479     tv.tv_sec = 0;
480     tv.tv_usec = 0;
481     n = select(1, &rfds, NULL, NULL, &tv);
482     if (n > 0) {
483         n = read(0, &ch, 1);
484         if (n == 1)
485             return ch;
486
487         return n;
488     }
489 #elif HAVE_CONIO_H
490     if(kbhit())
491         return(getch());
492 #endif
493     return -1;
494 }
495
496 static int decode_interrupt_cb(void)
497 {
498     return q_pressed || (q_pressed = read_key() == 'q');
499 }
500
501 static int ffmpeg_exit(int ret)
502 {
503     int i;
504
505     /* close files */
506     for(i=0;i<nb_output_files;i++) {
507         /* maybe av_close_output_file ??? */
508         AVFormatContext *s = output_files[i];
509         int j;
510         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
511             url_fclose(s->pb);
512         for(j=0;j<s->nb_streams;j++) {
513             av_metadata_free(&s->streams[j]->metadata);
514             av_free(s->streams[j]->codec);
515             av_free(s->streams[j]->info);
516             av_free(s->streams[j]);
517         }
518         for(j=0;j<s->nb_programs;j++) {
519             av_metadata_free(&s->programs[j]->metadata);
520         }
521         for(j=0;j<s->nb_chapters;j++) {
522             av_metadata_free(&s->chapters[j]->metadata);
523         }
524         av_metadata_free(&s->metadata);
525         av_free(s);
526         av_free(output_streams_for_file[i]);
527     }
528     for(i=0;i<nb_input_files;i++) {
529         av_close_input_file(input_files[i]);
530         av_free(input_files_ts_scale[i]);
531     }
532
533     av_free(intra_matrix);
534     av_free(inter_matrix);
535
536     if (vstats_file)
537         fclose(vstats_file);
538     av_free(vstats_filename);
539
540     av_free(opt_names);
541     av_free(streamid_map);
542     av_free(input_codecs);
543     av_free(output_codecs);
544     av_free(stream_maps);
545     av_free(meta_data_maps);
546
547     av_free(video_codec_name);
548     av_free(audio_codec_name);
549     av_free(subtitle_codec_name);
550
551     av_free(video_standard);
552
553     uninit_opts();
554     av_free(audio_buf);
555     av_free(audio_out);
556     allocated_audio_buf_size= allocated_audio_out_size= 0;
557     av_free(samples);
558
559 #if CONFIG_AVFILTER
560     avfilter_uninit();
561 #endif
562
563     if (received_sigterm) {
564         fprintf(stderr,
565             "Received signal %d: terminating.\n",
566             (int) received_sigterm);
567         exit (255);
568     }
569
570     exit(ret); /* not all OS-es handle main() return value */
571     return ret;
572 }
573
574 /* similar to ff_dynarray_add() and av_fast_realloc() */
575 static void *grow_array(void *array, int elem_size, int *size, int new_size)
576 {
577     if (new_size >= INT_MAX / elem_size) {
578         fprintf(stderr, "Array too big.\n");
579         ffmpeg_exit(1);
580     }
581     if (*size < new_size) {
582         uint8_t *tmp = av_realloc(array, new_size*elem_size);
583         if (!tmp) {
584             fprintf(stderr, "Could not alloc buffer.\n");
585             ffmpeg_exit(1);
586         }
587         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
588         *size = new_size;
589         return tmp;
590     }
591     return array;
592 }
593
594 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
595 {
596     if(codec && codec->sample_fmts){
597         const enum AVSampleFormat *p= codec->sample_fmts;
598         for(; *p!=-1; p++){
599             if(*p == st->codec->sample_fmt)
600                 break;
601         }
602         if(*p == -1)
603             st->codec->sample_fmt = codec->sample_fmts[0];
604     }
605 }
606
607 static void choose_sample_rate(AVStream *st, AVCodec *codec)
608 {
609     if(codec && codec->supported_samplerates){
610         const int *p= codec->supported_samplerates;
611         int best=0;
612         int best_dist=INT_MAX;
613         for(; *p; p++){
614             int dist= abs(st->codec->sample_rate - *p);
615             if(dist < best_dist){
616                 best_dist= dist;
617                 best= *p;
618             }
619         }
620         if(best_dist){
621             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
622         }
623         st->codec->sample_rate= best;
624     }
625 }
626
627 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
628 {
629     if(codec && codec->pix_fmts){
630         const enum PixelFormat *p= codec->pix_fmts;
631         for(; *p!=-1; p++){
632             if(*p == st->codec->pix_fmt)
633                 break;
634         }
635         if(*p == -1
636            && !(   st->codec->codec_id==CODEC_ID_MJPEG
637                 && st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL
638                 && (   st->codec->pix_fmt == PIX_FMT_YUV420P
639                     || st->codec->pix_fmt == PIX_FMT_YUV422P)))
640             st->codec->pix_fmt = codec->pix_fmts[0];
641     }
642 }
643
644 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
645 {
646     int idx = oc->nb_streams - 1;
647     AVOutputStream *ost;
648
649     output_streams_for_file[file_idx] =
650         grow_array(output_streams_for_file[file_idx],
651                    sizeof(*output_streams_for_file[file_idx]),
652                    &nb_output_streams_for_file[file_idx],
653                    oc->nb_streams);
654     ost = output_streams_for_file[file_idx][idx] =
655         av_mallocz(sizeof(AVOutputStream));
656     if (!ost) {
657         fprintf(stderr, "Could not alloc output stream\n");
658         ffmpeg_exit(1);
659     }
660     ost->file_index = file_idx;
661     ost->index = idx;
662     return ost;
663 }
664
665 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
666 {
667     int i, err;
668     AVFormatContext *ic;
669     int nopts = 0;
670
671     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
672     if (err < 0)
673         return err;
674     /* copy stream format */
675     s->nb_streams = 0;
676     for(i=0;i<ic->nb_streams;i++) {
677         AVStream *st;
678         AVCodec *codec;
679
680         s->nb_streams++;
681
682         // FIXME: a more elegant solution is needed
683         st = av_mallocz(sizeof(AVStream));
684         memcpy(st, ic->streams[i], sizeof(AVStream));
685         st->codec = avcodec_alloc_context();
686         if (!st->codec) {
687             print_error(filename, AVERROR(ENOMEM));
688             ffmpeg_exit(1);
689         }
690         avcodec_copy_context(st->codec, ic->streams[i]->codec);
691         s->streams[i] = st;
692
693         codec = avcodec_find_encoder(st->codec->codec_id);
694         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
695             if (audio_stream_copy) {
696                 st->stream_copy = 1;
697             } else
698                 choose_sample_fmt(st, codec);
699         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
700             if (video_stream_copy) {
701                 st->stream_copy = 1;
702             } else
703                 choose_pixel_fmt(st, codec);
704         }
705
706         if(!st->codec->thread_count)
707             st->codec->thread_count = 1;
708         if(st->codec->thread_count>1)
709             avcodec_thread_init(st->codec, st->codec->thread_count);
710
711         if(st->codec->flags & CODEC_FLAG_BITEXACT)
712             nopts = 1;
713
714         new_output_stream(s, nb_output_files);
715     }
716
717     if (!nopts)
718         s->timestamp = av_gettime();
719
720     av_close_input_file(ic);
721     return 0;
722 }
723
724 static double
725 get_sync_ipts(const AVOutputStream *ost)
726 {
727     const AVInputStream *ist = ost->sync_ist;
728     return (double)(ist->pts - start_time)/AV_TIME_BASE;
729 }
730
731 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
732     int ret;
733
734     while(bsfc){
735         AVPacket new_pkt= *pkt;
736         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
737                                           &new_pkt.data, &new_pkt.size,
738                                           pkt->data, pkt->size,
739                                           pkt->flags & AV_PKT_FLAG_KEY);
740         if(a>0){
741             av_free_packet(pkt);
742             new_pkt.destruct= av_destruct_packet;
743         } else if(a<0){
744             fprintf(stderr, "%s failed for stream %d, codec %s",
745                     bsfc->filter->name, pkt->stream_index,
746                     avctx->codec ? avctx->codec->name : "copy");
747             print_error("", a);
748             if (exit_on_error)
749                 ffmpeg_exit(1);
750         }
751         *pkt= new_pkt;
752
753         bsfc= bsfc->next;
754     }
755
756     ret= av_interleaved_write_frame(s, pkt);
757     if(ret < 0){
758         print_error("av_interleaved_write_frame()", ret);
759         ffmpeg_exit(1);
760     }
761 }
762
763 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
764
765 static void do_audio_out(AVFormatContext *s,
766                          AVOutputStream *ost,
767                          AVInputStream *ist,
768                          unsigned char *buf, int size)
769 {
770     uint8_t *buftmp;
771     int64_t audio_out_size, audio_buf_size;
772     int64_t allocated_for_size= size;
773
774     int size_out, frame_bytes, ret, resample_changed;
775     AVCodecContext *enc= ost->st->codec;
776     AVCodecContext *dec= ist->st->codec;
777     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
778     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
779     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
780
781 need_realloc:
782     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
783     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
784     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
785     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
786     audio_buf_size*= osize*enc->channels;
787
788     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
789     if(coded_bps > 8*osize)
790         audio_out_size= audio_out_size * coded_bps / (8*osize);
791     audio_out_size += FF_MIN_BUFFER_SIZE;
792
793     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
794         fprintf(stderr, "Buffer sizes too large\n");
795         ffmpeg_exit(1);
796     }
797
798     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
799     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
800     if (!audio_buf || !audio_out){
801         fprintf(stderr, "Out of memory in do_audio_out\n");
802         ffmpeg_exit(1);
803     }
804
805     if (enc->channels != dec->channels)
806         ost->audio_resample = 1;
807
808     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
809                        ost->resample_channels    != dec->channels   ||
810                        ost->resample_sample_rate != dec->sample_rate;
811
812     if ((ost->audio_resample && !ost->resample) || resample_changed) {
813         if (resample_changed) {
814             av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
815                    ist->file_index, ist->index,
816                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
817                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
818             ost->resample_sample_fmt  = dec->sample_fmt;
819             ost->resample_channels    = dec->channels;
820             ost->resample_sample_rate = dec->sample_rate;
821             if (ost->resample)
822                 audio_resample_close(ost->resample);
823         }
824         if (ost->resample_sample_fmt  == enc->sample_fmt &&
825             ost->resample_channels    == enc->channels   &&
826             ost->resample_sample_rate == enc->sample_rate) {
827             ost->resample = NULL;
828             ost->audio_resample = 0;
829         } else {
830             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
831                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
832             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
833                                                    enc->sample_rate, dec->sample_rate,
834                                                    enc->sample_fmt,  dec->sample_fmt,
835                                                    16, 10, 0, 0.8);
836             if (!ost->resample) {
837                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
838                         dec->channels, dec->sample_rate,
839                         enc->channels, enc->sample_rate);
840                 ffmpeg_exit(1);
841             }
842         }
843     }
844
845 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
846     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
847         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
848         if (ost->reformat_ctx)
849             av_audio_convert_free(ost->reformat_ctx);
850         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
851                                                    dec->sample_fmt, 1, NULL, 0);
852         if (!ost->reformat_ctx) {
853             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
854                 av_get_sample_fmt_name(dec->sample_fmt),
855                 av_get_sample_fmt_name(enc->sample_fmt));
856             ffmpeg_exit(1);
857         }
858         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
859     }
860
861     if(audio_sync_method){
862         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
863                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
864         double idelta= delta*dec->sample_rate / enc->sample_rate;
865         int byte_delta= ((int)idelta)*2*dec->channels;
866
867         //FIXME resample delay
868         if(fabs(delta) > 50){
869             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
870                 if(byte_delta < 0){
871                     byte_delta= FFMAX(byte_delta, -size);
872                     size += byte_delta;
873                     buf  -= byte_delta;
874                     if(verbose > 2)
875                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
876                     if(!size)
877                         return;
878                     ist->is_start=0;
879                 }else{
880                     static uint8_t *input_tmp= NULL;
881                     input_tmp= av_realloc(input_tmp, byte_delta + size);
882
883                     if(byte_delta > allocated_for_size - size){
884                         allocated_for_size= byte_delta + (int64_t)size;
885                         goto need_realloc;
886                     }
887                     ist->is_start=0;
888
889                     memset(input_tmp, 0, byte_delta);
890                     memcpy(input_tmp + byte_delta, buf, size);
891                     buf= input_tmp;
892                     size += byte_delta;
893                     if(verbose > 2)
894                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
895                 }
896             }else if(audio_sync_method>1){
897                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
898                 av_assert0(ost->audio_resample);
899                 if(verbose > 2)
900                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
901 //                fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
902                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
903             }
904         }
905     }else
906         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
907                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
908
909     if (ost->audio_resample) {
910         buftmp = audio_buf;
911         size_out = audio_resample(ost->resample,
912                                   (short *)buftmp, (short *)buf,
913                                   size / (dec->channels * isize));
914         size_out = size_out * enc->channels * osize;
915     } else {
916         buftmp = buf;
917         size_out = size;
918     }
919
920     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
921         const void *ibuf[6]= {buftmp};
922         void *obuf[6]= {audio_buf};
923         int istride[6]= {isize};
924         int ostride[6]= {osize};
925         int len= size_out/istride[0];
926         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
927             printf("av_audio_convert() failed\n");
928             if (exit_on_error)
929                 ffmpeg_exit(1);
930             return;
931         }
932         buftmp = audio_buf;
933         size_out = len*osize;
934     }
935
936     /* now encode as many frames as possible */
937     if (enc->frame_size > 1) {
938         /* output resampled raw samples */
939         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
940             fprintf(stderr, "av_fifo_realloc2() failed\n");
941             ffmpeg_exit(1);
942         }
943         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
944
945         frame_bytes = enc->frame_size * osize * enc->channels;
946
947         while (av_fifo_size(ost->fifo) >= frame_bytes) {
948             AVPacket pkt;
949             av_init_packet(&pkt);
950
951             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
952
953             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
954
955             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
956                                        (short *)audio_buf);
957             if (ret < 0) {
958                 fprintf(stderr, "Audio encoding failed\n");
959                 ffmpeg_exit(1);
960             }
961             audio_size += ret;
962             pkt.stream_index= ost->index;
963             pkt.data= audio_out;
964             pkt.size= ret;
965             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
966                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
967             pkt.flags |= AV_PKT_FLAG_KEY;
968             write_frame(s, &pkt, enc, ost->bitstream_filters);
969
970             ost->sync_opts += enc->frame_size;
971         }
972     } else {
973         AVPacket pkt;
974         av_init_packet(&pkt);
975
976         ost->sync_opts += size_out / (osize * enc->channels);
977
978         /* output a pcm frame */
979         /* determine the size of the coded buffer */
980         size_out /= osize;
981         if (coded_bps)
982             size_out = size_out*coded_bps/8;
983
984         if(size_out > audio_out_size){
985             fprintf(stderr, "Internal error, buffer size too small\n");
986             ffmpeg_exit(1);
987         }
988
989         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
990         ret = avcodec_encode_audio(enc, audio_out, size_out,
991                                    (short *)buftmp);
992         if (ret < 0) {
993             fprintf(stderr, "Audio encoding failed\n");
994             ffmpeg_exit(1);
995         }
996         audio_size += ret;
997         pkt.stream_index= ost->index;
998         pkt.data= audio_out;
999         pkt.size= ret;
1000         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1001             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1002         pkt.flags |= AV_PKT_FLAG_KEY;
1003         write_frame(s, &pkt, enc, ost->bitstream_filters);
1004     }
1005 }
1006
1007 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1008 {
1009     AVCodecContext *dec;
1010     AVPicture *picture2;
1011     AVPicture picture_tmp;
1012     uint8_t *buf = 0;
1013
1014     dec = ist->st->codec;
1015
1016     /* deinterlace : must be done before any resize */
1017     if (do_deinterlace) {
1018         int size;
1019
1020         /* create temporary picture */
1021         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1022         buf = av_malloc(size);
1023         if (!buf)
1024             return;
1025
1026         picture2 = &picture_tmp;
1027         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1028
1029         if(avpicture_deinterlace(picture2, picture,
1030                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1031             /* if error, do not deinterlace */
1032             fprintf(stderr, "Deinterlacing failed\n");
1033             av_free(buf);
1034             buf = NULL;
1035             picture2 = picture;
1036         }
1037     } else {
1038         picture2 = picture;
1039     }
1040
1041     if (picture != picture2)
1042         *picture = *picture2;
1043     *bufp = buf;
1044 }
1045
1046 /* we begin to correct av delay at this threshold */
1047 #define AV_DELAY_MAX 0.100
1048
1049 static void do_subtitle_out(AVFormatContext *s,
1050                             AVOutputStream *ost,
1051                             AVInputStream *ist,
1052                             AVSubtitle *sub,
1053                             int64_t pts)
1054 {
1055     static uint8_t *subtitle_out = NULL;
1056     int subtitle_out_max_size = 1024 * 1024;
1057     int subtitle_out_size, nb, i;
1058     AVCodecContext *enc;
1059     AVPacket pkt;
1060
1061     if (pts == AV_NOPTS_VALUE) {
1062         fprintf(stderr, "Subtitle packets must have a pts\n");
1063         if (exit_on_error)
1064             ffmpeg_exit(1);
1065         return;
1066     }
1067
1068     enc = ost->st->codec;
1069
1070     if (!subtitle_out) {
1071         subtitle_out = av_malloc(subtitle_out_max_size);
1072     }
1073
1074     /* Note: DVB subtitle need one packet to draw them and one other
1075        packet to clear them */
1076     /* XXX: signal it in the codec context ? */
1077     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1078         nb = 2;
1079     else
1080         nb = 1;
1081
1082     for(i = 0; i < nb; i++) {
1083         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1084         // start_display_time is required to be 0
1085         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1086         sub->end_display_time -= sub->start_display_time;
1087         sub->start_display_time = 0;
1088         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1089                                                     subtitle_out_max_size, sub);
1090         if (subtitle_out_size < 0) {
1091             fprintf(stderr, "Subtitle encoding failed\n");
1092             ffmpeg_exit(1);
1093         }
1094
1095         av_init_packet(&pkt);
1096         pkt.stream_index = ost->index;
1097         pkt.data = subtitle_out;
1098         pkt.size = subtitle_out_size;
1099         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1100         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1101             /* XXX: the pts correction is handled here. Maybe handling
1102                it in the codec would be better */
1103             if (i == 0)
1104                 pkt.pts += 90 * sub->start_display_time;
1105             else
1106                 pkt.pts += 90 * sub->end_display_time;
1107         }
1108         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1109     }
1110 }
1111
1112 static int bit_buffer_size= 1024*256;
1113 static uint8_t *bit_buffer= NULL;
1114
1115 static void do_video_out(AVFormatContext *s,
1116                          AVOutputStream *ost,
1117                          AVInputStream *ist,
1118                          AVFrame *in_picture,
1119                          int *frame_size)
1120 {
1121     int nb_frames, i, ret;
1122     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1123     AVCodecContext *enc, *dec;
1124     double sync_ipts;
1125
1126     enc = ost->st->codec;
1127     dec = ist->st->codec;
1128
1129     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1130
1131     /* by default, we output a single frame */
1132     nb_frames = 1;
1133
1134     *frame_size = 0;
1135
1136     if(video_sync_method){
1137         double vdelta = sync_ipts - ost->sync_opts;
1138         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1139         if (vdelta < -1.1)
1140             nb_frames = 0;
1141         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1142             if(vdelta<=-0.6){
1143                 nb_frames=0;
1144             }else if(vdelta>0.6)
1145                 ost->sync_opts= lrintf(sync_ipts);
1146         }else if (vdelta > 1.1)
1147             nb_frames = lrintf(vdelta);
1148 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1149         if (nb_frames == 0){
1150             ++nb_frames_drop;
1151             if (verbose>2)
1152                 fprintf(stderr, "*** drop!\n");
1153         }else if (nb_frames > 1) {
1154             nb_frames_dup += nb_frames - 1;
1155             if (verbose>2)
1156                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1157         }
1158     }else
1159         ost->sync_opts= lrintf(sync_ipts);
1160
1161     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1162     if (nb_frames <= 0)
1163         return;
1164
1165     formatted_picture = in_picture;
1166     final_picture = formatted_picture;
1167     padding_src = formatted_picture;
1168     resampling_dst = &ost->pict_tmp;
1169
1170     if (   ost->resample_height != ist->st->codec->height
1171         || ost->resample_width  != ist->st->codec->width
1172         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1173
1174         fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width,     ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1175         if(!ost->video_resample)
1176             ffmpeg_exit(1);
1177     }
1178
1179 #if !CONFIG_AVFILTER
1180     if (ost->video_resample) {
1181         padding_src = NULL;
1182         final_picture = &ost->pict_tmp;
1183         if(  ost->resample_height != ist->st->codec->height
1184           || ost->resample_width  != ist->st->codec->width
1185           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1186
1187             /* initialize a new scaler context */
1188             sws_freeContext(ost->img_resample_ctx);
1189             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1190             ost->img_resample_ctx = sws_getContext(
1191                 ist->st->codec->width,
1192                 ist->st->codec->height,
1193                 ist->st->codec->pix_fmt,
1194                 ost->st->codec->width,
1195                 ost->st->codec->height,
1196                 ost->st->codec->pix_fmt,
1197                 sws_flags, NULL, NULL, NULL);
1198             if (ost->img_resample_ctx == NULL) {
1199                 fprintf(stderr, "Cannot get resampling context\n");
1200                 ffmpeg_exit(1);
1201             }
1202         }
1203         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1204               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1205     }
1206 #endif
1207
1208     /* duplicates frame if needed */
1209     for(i=0;i<nb_frames;i++) {
1210         AVPacket pkt;
1211         av_init_packet(&pkt);
1212         pkt.stream_index= ost->index;
1213
1214         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1215             /* raw pictures are written as AVPicture structure to
1216                avoid any copies. We support temorarily the older
1217                method. */
1218             AVFrame* old_frame = enc->coded_frame;
1219             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1220             pkt.data= (uint8_t *)final_picture;
1221             pkt.size=  sizeof(AVPicture);
1222             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1223             pkt.flags |= AV_PKT_FLAG_KEY;
1224
1225             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1226             enc->coded_frame = old_frame;
1227         } else {
1228             AVFrame big_picture;
1229
1230             big_picture= *final_picture;
1231             /* better than nothing: use input picture interlaced
1232                settings */
1233             big_picture.interlaced_frame = in_picture->interlaced_frame;
1234             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1235                 if(top_field_first == -1)
1236                     big_picture.top_field_first = in_picture->top_field_first;
1237                 else
1238                     big_picture.top_field_first = top_field_first;
1239             }
1240
1241             /* handles sameq here. This is not correct because it may
1242                not be a global option */
1243             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1244             if(!me_threshold)
1245                 big_picture.pict_type = 0;
1246 //            big_picture.pts = AV_NOPTS_VALUE;
1247             big_picture.pts= ost->sync_opts;
1248 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1249 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1250             if (ost->forced_kf_index < ost->forced_kf_count &&
1251                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1252                 big_picture.pict_type = FF_I_TYPE;
1253                 ost->forced_kf_index++;
1254             }
1255             ret = avcodec_encode_video(enc,
1256                                        bit_buffer, bit_buffer_size,
1257                                        &big_picture);
1258             if (ret < 0) {
1259                 fprintf(stderr, "Video encoding failed\n");
1260                 ffmpeg_exit(1);
1261             }
1262
1263             if(ret>0){
1264                 pkt.data= bit_buffer;
1265                 pkt.size= ret;
1266                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1267                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1268 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1269    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1270    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1271
1272                 if(enc->coded_frame->key_frame)
1273                     pkt.flags |= AV_PKT_FLAG_KEY;
1274                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1275                 *frame_size = ret;
1276                 video_size += ret;
1277                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1278                 //        enc->frame_number-1, ret, enc->pict_type);
1279                 /* if two pass, output log */
1280                 if (ost->logfile && enc->stats_out) {
1281                     fprintf(ost->logfile, "%s", enc->stats_out);
1282                 }
1283             }
1284         }
1285         ost->sync_opts++;
1286         ost->frame_number++;
1287     }
1288 }
1289
1290 static double psnr(double d){
1291     return -10.0*log(d)/log(10.0);
1292 }
1293
1294 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1295                            int frame_size)
1296 {
1297     AVCodecContext *enc;
1298     int frame_number;
1299     double ti1, bitrate, avg_bitrate;
1300
1301     /* this is executed just the first time do_video_stats is called */
1302     if (!vstats_file) {
1303         vstats_file = fopen(vstats_filename, "w");
1304         if (!vstats_file) {
1305             perror("fopen");
1306             ffmpeg_exit(1);
1307         }
1308     }
1309
1310     enc = ost->st->codec;
1311     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1312         frame_number = ost->frame_number;
1313         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1314         if (enc->flags&CODEC_FLAG_PSNR)
1315             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1316
1317         fprintf(vstats_file,"f_size= %6d ", frame_size);
1318         /* compute pts value */
1319         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1320         if (ti1 < 0.01)
1321             ti1 = 0.01;
1322
1323         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1324         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1325         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1326             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1327         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1328     }
1329 }
1330
1331 static void print_report(AVFormatContext **output_files,
1332                          AVOutputStream **ost_table, int nb_ostreams,
1333                          int is_last_report)
1334 {
1335     char buf[1024];
1336     AVOutputStream *ost;
1337     AVFormatContext *oc;
1338     int64_t total_size;
1339     AVCodecContext *enc;
1340     int frame_number, vid, i;
1341     double bitrate, ti1, pts;
1342     static int64_t last_time = -1;
1343     static int qp_histogram[52];
1344
1345     if (!is_last_report) {
1346         int64_t cur_time;
1347         /* display the report every 0.5 seconds */
1348         cur_time = av_gettime();
1349         if (last_time == -1) {
1350             last_time = cur_time;
1351             return;
1352         }
1353         if ((cur_time - last_time) < 500000)
1354             return;
1355         last_time = cur_time;
1356     }
1357
1358
1359     oc = output_files[0];
1360
1361     total_size = url_fsize(oc->pb);
1362     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1363         total_size= url_ftell(oc->pb);
1364
1365     buf[0] = '\0';
1366     ti1 = 1e10;
1367     vid = 0;
1368     for(i=0;i<nb_ostreams;i++) {
1369         ost = ost_table[i];
1370         enc = ost->st->codec;
1371         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1372             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1373                      !ost->st->stream_copy ?
1374                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1375         }
1376         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1377             float t = (av_gettime()-timer_start) / 1000000.0;
1378
1379             frame_number = ost->frame_number;
1380             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1381                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1382                      !ost->st->stream_copy ?
1383                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1384             if(is_last_report)
1385                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1386             if(qp_hist){
1387                 int j;
1388                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1389                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1390                     qp_histogram[qp]++;
1391                 for(j=0; j<32; j++)
1392                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1393             }
1394             if (enc->flags&CODEC_FLAG_PSNR){
1395                 int j;
1396                 double error, error_sum=0;
1397                 double scale, scale_sum=0;
1398                 char type[3]= {'Y','U','V'};
1399                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1400                 for(j=0; j<3; j++){
1401                     if(is_last_report){
1402                         error= enc->error[j];
1403                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1404                     }else{
1405                         error= enc->coded_frame->error[j];
1406                         scale= enc->width*enc->height*255.0*255.0;
1407                     }
1408                     if(j) scale/=4;
1409                     error_sum += error;
1410                     scale_sum += scale;
1411                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1412                 }
1413                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1414             }
1415             vid = 1;
1416         }
1417         /* compute min output value */
1418         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1419         if ((pts < ti1) && (pts > 0))
1420             ti1 = pts;
1421     }
1422     if (ti1 < 0.01)
1423         ti1 = 0.01;
1424
1425     if (verbose || is_last_report) {
1426         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1427
1428         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1429             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1430             (double)total_size / 1024, ti1, bitrate);
1431
1432         if (nb_frames_dup || nb_frames_drop)
1433           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1434                   nb_frames_dup, nb_frames_drop);
1435
1436         if (verbose >= 0)
1437             fprintf(stderr, "%s    \r", buf);
1438
1439         fflush(stderr);
1440     }
1441
1442     if (is_last_report && verbose >= 0){
1443         int64_t raw= audio_size + video_size + extra_size;
1444         fprintf(stderr, "\n");
1445         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1446                 video_size/1024.0,
1447                 audio_size/1024.0,
1448                 extra_size/1024.0,
1449                 100.0*(total_size - raw)/raw
1450         );
1451     }
1452 }
1453
1454 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1455 static int output_packet(AVInputStream *ist, int ist_index,
1456                          AVOutputStream **ost_table, int nb_ostreams,
1457                          const AVPacket *pkt)
1458 {
1459     AVFormatContext *os;
1460     AVOutputStream *ost;
1461     int ret, i;
1462     int got_picture;
1463     AVFrame picture;
1464     void *buffer_to_free;
1465     static unsigned int samples_size= 0;
1466     AVSubtitle subtitle, *subtitle_to_free;
1467     int64_t pkt_pts = AV_NOPTS_VALUE;
1468 #if CONFIG_AVFILTER
1469     int frame_available;
1470 #endif
1471
1472     AVPacket avpkt;
1473     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1474
1475     if(ist->next_pts == AV_NOPTS_VALUE)
1476         ist->next_pts= ist->pts;
1477
1478     if (pkt == NULL) {
1479         /* EOF handling */
1480         av_init_packet(&avpkt);
1481         avpkt.data = NULL;
1482         avpkt.size = 0;
1483         goto handle_eof;
1484     } else {
1485         avpkt = *pkt;
1486     }
1487
1488     if(pkt->dts != AV_NOPTS_VALUE)
1489         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1490     if(pkt->pts != AV_NOPTS_VALUE)
1491         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1492
1493     //while we have more to decode or while the decoder did output something on EOF
1494     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1495         uint8_t *data_buf, *decoded_data_buf;
1496         int data_size, decoded_data_size;
1497     handle_eof:
1498         ist->pts= ist->next_pts;
1499
1500         if(avpkt.size && avpkt.size != pkt->size &&
1501            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1502             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1503             ist->showed_multi_packet_warning=1;
1504         }
1505
1506         /* decode the packet if needed */
1507         decoded_data_buf = NULL; /* fail safe */
1508         decoded_data_size= 0;
1509         data_buf  = avpkt.data;
1510         data_size = avpkt.size;
1511         subtitle_to_free = NULL;
1512         if (ist->decoding_needed) {
1513             switch(ist->st->codec->codec_type) {
1514             case AVMEDIA_TYPE_AUDIO:{
1515                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1516                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1517                     av_free(samples);
1518                     samples= av_malloc(samples_size);
1519                 }
1520                 decoded_data_size= samples_size;
1521                     /* XXX: could avoid copy if PCM 16 bits with same
1522                        endianness as CPU */
1523                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1524                                             &avpkt);
1525                 if (ret < 0)
1526                     goto fail_decode;
1527                 avpkt.data += ret;
1528                 avpkt.size -= ret;
1529                 data_size   = ret;
1530                 /* Some bug in mpeg audio decoder gives */
1531                 /* decoded_data_size < 0, it seems they are overflows */
1532                 if (decoded_data_size <= 0) {
1533                     /* no audio frame */
1534                     continue;
1535                 }
1536                 decoded_data_buf = (uint8_t *)samples;
1537                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1538                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1539                 break;}
1540             case AVMEDIA_TYPE_VIDEO:
1541                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1542                     /* XXX: allocate picture correctly */
1543                     avcodec_get_frame_defaults(&picture);
1544                     ist->st->codec->reordered_opaque = pkt_pts;
1545                     pkt_pts = AV_NOPTS_VALUE;
1546
1547                     ret = avcodec_decode_video2(ist->st->codec,
1548                                                 &picture, &got_picture, &avpkt);
1549                     ist->st->quality= picture.quality;
1550                     if (ret < 0)
1551                         goto fail_decode;
1552                     if (!got_picture) {
1553                         /* no picture yet */
1554                         goto discard_packet;
1555                     }
1556                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.reordered_opaque, ist->pts);
1557                     if (ist->st->codec->time_base.num != 0) {
1558                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1559                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1560                                           ist->st->codec->time_base.num * ticks) /
1561                             ist->st->codec->time_base.den;
1562                     }
1563                     avpkt.size = 0;
1564                     break;
1565             case AVMEDIA_TYPE_SUBTITLE:
1566                 ret = avcodec_decode_subtitle2(ist->st->codec,
1567                                                &subtitle, &got_picture, &avpkt);
1568                 if (ret < 0)
1569                     goto fail_decode;
1570                 if (!got_picture) {
1571                     goto discard_packet;
1572                 }
1573                 subtitle_to_free = &subtitle;
1574                 avpkt.size = 0;
1575                 break;
1576             default:
1577                 goto fail_decode;
1578             }
1579         } else {
1580             switch(ist->st->codec->codec_type) {
1581             case AVMEDIA_TYPE_AUDIO:
1582                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1583                     ist->st->codec->sample_rate;
1584                 break;
1585             case AVMEDIA_TYPE_VIDEO:
1586                 if (ist->st->codec->time_base.num != 0) {
1587                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1588                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1589                                       ist->st->codec->time_base.num * ticks) /
1590                         ist->st->codec->time_base.den;
1591                 }
1592                 break;
1593             }
1594             ret = avpkt.size;
1595             avpkt.size = 0;
1596         }
1597
1598         buffer_to_free = NULL;
1599         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1600             pre_process_video_frame(ist, (AVPicture *)&picture,
1601                                     &buffer_to_free);
1602         }
1603
1604 #if CONFIG_AVFILTER
1605         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1606             // add it to be filtered
1607             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1608                                      ist->pts,
1609                                      ist->st->codec->sample_aspect_ratio);
1610         }
1611 #endif
1612
1613         // preprocess audio (volume)
1614         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1615             if (audio_volume != 256) {
1616                 short *volp;
1617                 volp = samples;
1618                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1619                     int v = ((*volp) * audio_volume + 128) >> 8;
1620                     if (v < -32768) v = -32768;
1621                     if (v >  32767) v = 32767;
1622                     *volp++ = v;
1623                 }
1624             }
1625         }
1626
1627         /* frame rate emulation */
1628         if (rate_emu) {
1629             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1630             int64_t now = av_gettime() - ist->start;
1631             if (pts > now)
1632                 usleep(pts - now);
1633         }
1634 #if CONFIG_AVFILTER
1635         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1636             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1637 #endif
1638         /* if output time reached then transcode raw format,
1639            encode packets and output them */
1640         if (start_time == 0 || ist->pts >= start_time)
1641 #if CONFIG_AVFILTER
1642         while (frame_available) {
1643             AVRational ist_pts_tb;
1644             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1645                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1646             if (ist->picref)
1647                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1648 #endif
1649             for(i=0;i<nb_ostreams;i++) {
1650                 int frame_size;
1651
1652                 ost = ost_table[i];
1653                 if (ost->source_index == ist_index) {
1654                     os = output_files[ost->file_index];
1655
1656                     /* set the input output pts pairs */
1657                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1658
1659                     if (ost->encoding_needed) {
1660                         av_assert0(ist->decoding_needed);
1661                         switch(ost->st->codec->codec_type) {
1662                         case AVMEDIA_TYPE_AUDIO:
1663                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1664                             break;
1665                         case AVMEDIA_TYPE_VIDEO:
1666 #if CONFIG_AVFILTER
1667                             if (ist->picref->video)
1668                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1669 #endif
1670                             do_video_out(os, ost, ist, &picture, &frame_size);
1671                             if (vstats_filename && frame_size)
1672                                 do_video_stats(os, ost, frame_size);
1673                             break;
1674                         case AVMEDIA_TYPE_SUBTITLE:
1675                             do_subtitle_out(os, ost, ist, &subtitle,
1676                                             pkt->pts);
1677                             break;
1678                         default:
1679                             abort();
1680                         }
1681                     } else {
1682                         AVFrame avframe; //FIXME/XXX remove this
1683                         AVPacket opkt;
1684                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1685
1686                         av_init_packet(&opkt);
1687
1688                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1689                             continue;
1690
1691                         /* no reencoding needed : output the packet directly */
1692                         /* force the input stream PTS */
1693
1694                         avcodec_get_frame_defaults(&avframe);
1695                         ost->st->codec->coded_frame= &avframe;
1696                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1697
1698                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1699                             audio_size += data_size;
1700                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1701                             video_size += data_size;
1702                             ost->sync_opts++;
1703                         }
1704
1705                         opkt.stream_index= ost->index;
1706                         if(pkt->pts != AV_NOPTS_VALUE)
1707                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1708                         else
1709                             opkt.pts= AV_NOPTS_VALUE;
1710
1711                         if (pkt->dts == AV_NOPTS_VALUE)
1712                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1713                         else
1714                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1715                         opkt.dts -= ost_tb_start_time;
1716
1717                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1718                         opkt.flags= pkt->flags;
1719
1720                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1721                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1722                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1723                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1724                            ) {
1725                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1726                                 opkt.destruct= av_destruct_packet;
1727                         } else {
1728                             opkt.data = data_buf;
1729                             opkt.size = data_size;
1730                         }
1731
1732                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1733                         ost->st->codec->frame_number++;
1734                         ost->frame_number++;
1735                         av_free_packet(&opkt);
1736                     }
1737                 }
1738             }
1739
1740 #if CONFIG_AVFILTER
1741             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1742                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1743             if(ist->picref)
1744                 avfilter_unref_buffer(ist->picref);
1745         }
1746 #endif
1747         av_free(buffer_to_free);
1748         /* XXX: allocate the subtitles in the codec ? */
1749         if (subtitle_to_free) {
1750             if (subtitle_to_free->rects != NULL) {
1751                 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1752                     av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1753                     av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1754                     av_freep(&subtitle_to_free->rects[i]);
1755                 }
1756                 av_freep(&subtitle_to_free->rects);
1757             }
1758             subtitle_to_free->num_rects = 0;
1759             subtitle_to_free = NULL;
1760         }
1761     }
1762  discard_packet:
1763     if (pkt == NULL) {
1764         /* EOF handling */
1765
1766         for(i=0;i<nb_ostreams;i++) {
1767             ost = ost_table[i];
1768             if (ost->source_index == ist_index) {
1769                 AVCodecContext *enc= ost->st->codec;
1770                 os = output_files[ost->file_index];
1771
1772                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1773                     continue;
1774                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1775                     continue;
1776
1777                 if (ost->encoding_needed) {
1778                     for(;;) {
1779                         AVPacket pkt;
1780                         int fifo_bytes;
1781                         av_init_packet(&pkt);
1782                         pkt.stream_index= ost->index;
1783
1784                         switch(ost->st->codec->codec_type) {
1785                         case AVMEDIA_TYPE_AUDIO:
1786                             fifo_bytes = av_fifo_size(ost->fifo);
1787                             ret = 0;
1788                             /* encode any samples remaining in fifo */
1789                             if (fifo_bytes > 0) {
1790                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1791                                 int fs_tmp = enc->frame_size;
1792
1793                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1794                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1795                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1796                                 } else { /* pad */
1797                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1798                                     if (allocated_audio_buf_size < frame_bytes)
1799                                         ffmpeg_exit(1);
1800                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1801                                 }
1802
1803                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1804                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1805                                                           ost->st->time_base.num, enc->sample_rate);
1806                                 enc->frame_size = fs_tmp;
1807                             }
1808                             if(ret <= 0) {
1809                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1810                             }
1811                             if (ret < 0) {
1812                                 fprintf(stderr, "Audio encoding failed\n");
1813                                 ffmpeg_exit(1);
1814                             }
1815                             audio_size += ret;
1816                             pkt.flags |= AV_PKT_FLAG_KEY;
1817                             break;
1818                         case AVMEDIA_TYPE_VIDEO:
1819                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1820                             if (ret < 0) {
1821                                 fprintf(stderr, "Video encoding failed\n");
1822                                 ffmpeg_exit(1);
1823                             }
1824                             video_size += ret;
1825                             if(enc->coded_frame && enc->coded_frame->key_frame)
1826                                 pkt.flags |= AV_PKT_FLAG_KEY;
1827                             if (ost->logfile && enc->stats_out) {
1828                                 fprintf(ost->logfile, "%s", enc->stats_out);
1829                             }
1830                             break;
1831                         default:
1832                             ret=-1;
1833                         }
1834
1835                         if(ret<=0)
1836                             break;
1837                         pkt.data= bit_buffer;
1838                         pkt.size= ret;
1839                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1840                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1841                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1842                     }
1843                 }
1844             }
1845         }
1846     }
1847
1848     return 0;
1849  fail_decode:
1850     return -1;
1851 }
1852
1853 static void print_sdp(AVFormatContext **avc, int n)
1854 {
1855     char sdp[2048];
1856
1857     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1858     printf("SDP:\n%s\n", sdp);
1859     fflush(stdout);
1860 }
1861
1862 static int copy_chapters(int infile, int outfile)
1863 {
1864     AVFormatContext *is = input_files[infile];
1865     AVFormatContext *os = output_files[outfile];
1866     int i;
1867
1868     for (i = 0; i < is->nb_chapters; i++) {
1869         AVChapter *in_ch = is->chapters[i], *out_ch;
1870         AVMetadataTag *t = NULL;
1871         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1872                                       AV_TIME_BASE_Q, in_ch->time_base);
1873         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1874                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1875
1876
1877         if (in_ch->end < ts_off)
1878             continue;
1879         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1880             break;
1881
1882         out_ch = av_mallocz(sizeof(AVChapter));
1883         if (!out_ch)
1884             return AVERROR(ENOMEM);
1885
1886         out_ch->id        = in_ch->id;
1887         out_ch->time_base = in_ch->time_base;
1888         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1889         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1890
1891         if (metadata_chapters_autocopy)
1892             while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1893                 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1894
1895         os->nb_chapters++;
1896         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1897         if (!os->chapters)
1898             return AVERROR(ENOMEM);
1899         os->chapters[os->nb_chapters - 1] = out_ch;
1900     }
1901     return 0;
1902 }
1903
1904 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1905                                     AVCodecContext *avctx)
1906 {
1907     char *p;
1908     int n = 1, i;
1909     int64_t t;
1910
1911     for (p = kf; *p; p++)
1912         if (*p == ',')
1913             n++;
1914     ost->forced_kf_count = n;
1915     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1916     if (!ost->forced_kf_pts) {
1917         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1918         ffmpeg_exit(1);
1919     }
1920     for (i = 0; i < n; i++) {
1921         p = i ? strchr(p, ',') + 1 : kf;
1922         t = parse_time_or_die("force_key_frames", p, 1);
1923         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1924     }
1925 }
1926
1927 /*
1928  * The following code is the main loop of the file converter
1929  */
1930 static int transcode(AVFormatContext **output_files,
1931                      int nb_output_files,
1932                      AVFormatContext **input_files,
1933                      int nb_input_files,
1934                      AVStreamMap *stream_maps, int nb_stream_maps)
1935 {
1936     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1937     AVFormatContext *is, *os;
1938     AVCodecContext *codec, *icodec;
1939     AVOutputStream *ost, **ost_table = NULL;
1940     AVInputStream *ist, **ist_table = NULL;
1941     AVInputFile *file_table;
1942     char error[1024];
1943     int key;
1944     int want_sdp = 1;
1945     uint8_t no_packet[MAX_FILES]={0};
1946     int no_packet_count=0;
1947
1948     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1949     if (!file_table)
1950         goto fail;
1951
1952     /* input stream init */
1953     j = 0;
1954     for(i=0;i<nb_input_files;i++) {
1955         is = input_files[i];
1956         file_table[i].ist_index = j;
1957         file_table[i].nb_streams = is->nb_streams;
1958         j += is->nb_streams;
1959     }
1960     nb_istreams = j;
1961
1962     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1963     if (!ist_table)
1964         goto fail;
1965
1966     for(i=0;i<nb_istreams;i++) {
1967         ist = av_mallocz(sizeof(AVInputStream));
1968         if (!ist)
1969             goto fail;
1970         ist_table[i] = ist;
1971     }
1972     j = 0;
1973     for(i=0;i<nb_input_files;i++) {
1974         is = input_files[i];
1975         for(k=0;k<is->nb_streams;k++) {
1976             ist = ist_table[j++];
1977             ist->st = is->streams[k];
1978             ist->file_index = i;
1979             ist->index = k;
1980             ist->discard = 1; /* the stream is discarded by default
1981                                  (changed later) */
1982
1983             if (rate_emu) {
1984                 ist->start = av_gettime();
1985             }
1986         }
1987     }
1988
1989     /* output stream init */
1990     nb_ostreams = 0;
1991     for(i=0;i<nb_output_files;i++) {
1992         os = output_files[i];
1993         if (!os->nb_streams) {
1994             dump_format(output_files[i], i, output_files[i]->filename, 1);
1995             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1996             ret = AVERROR(EINVAL);
1997             goto fail;
1998         }
1999         nb_ostreams += os->nb_streams;
2000     }
2001     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2002         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2003         ret = AVERROR(EINVAL);
2004         goto fail;
2005     }
2006
2007     /* Sanity check the mapping args -- do the input files & streams exist? */
2008     for(i=0;i<nb_stream_maps;i++) {
2009         int fi = stream_maps[i].file_index;
2010         int si = stream_maps[i].stream_index;
2011
2012         if (fi < 0 || fi > nb_input_files - 1 ||
2013             si < 0 || si > file_table[fi].nb_streams - 1) {
2014             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2015             ret = AVERROR(EINVAL);
2016             goto fail;
2017         }
2018         fi = stream_maps[i].sync_file_index;
2019         si = stream_maps[i].sync_stream_index;
2020         if (fi < 0 || fi > nb_input_files - 1 ||
2021             si < 0 || si > file_table[fi].nb_streams - 1) {
2022             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2023             ret = AVERROR(EINVAL);
2024             goto fail;
2025         }
2026     }
2027
2028     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2029     if (!ost_table)
2030         goto fail;
2031     n = 0;
2032     for(k=0;k<nb_output_files;k++) {
2033         os = output_files[k];
2034         for(i=0;i<os->nb_streams;i++,n++) {
2035             int found;
2036             ost = ost_table[n] = output_streams_for_file[k][i];
2037             ost->st = os->streams[i];
2038             if (nb_stream_maps > 0) {
2039                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2040                     stream_maps[n].stream_index;
2041
2042                 /* Sanity check that the stream types match */
2043                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2044                     int i= ost->file_index;
2045                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2046                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2047                         stream_maps[n].file_index, stream_maps[n].stream_index,
2048                         ost->file_index, ost->index);
2049                     ffmpeg_exit(1);
2050                 }
2051
2052             } else {
2053                 int best_nb_frames=-1;
2054                 /* get corresponding input stream index : we select the first one with the right type */
2055                 found = 0;
2056                 for(j=0;j<nb_istreams;j++) {
2057                     int skip=0;
2058                     ist = ist_table[j];
2059                     if(opt_programid){
2060                         int pi,si;
2061                         AVFormatContext *f= input_files[ ist->file_index ];
2062                         skip=1;
2063                         for(pi=0; pi<f->nb_programs; pi++){
2064                             AVProgram *p= f->programs[pi];
2065                             if(p->id == opt_programid)
2066                                 for(si=0; si<p->nb_stream_indexes; si++){
2067                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2068                                         skip=0;
2069                                 }
2070                         }
2071                     }
2072                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2073                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2074                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2075                             best_nb_frames= ist->st->codec_info_nb_frames;
2076                             ost->source_index = j;
2077                             found = 1;
2078                         }
2079                     }
2080                 }
2081
2082                 if (!found) {
2083                     if(! opt_programid) {
2084                         /* try again and reuse existing stream */
2085                         for(j=0;j<nb_istreams;j++) {
2086                             ist = ist_table[j];
2087                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2088                                 && ist->st->discard != AVDISCARD_ALL) {
2089                                 ost->source_index = j;
2090                                 found = 1;
2091                             }
2092                         }
2093                     }
2094                     if (!found) {
2095                         int i= ost->file_index;
2096                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2097                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2098                                 ost->file_index, ost->index);
2099                         ffmpeg_exit(1);
2100                     }
2101                 }
2102             }
2103             ist = ist_table[ost->source_index];
2104             ist->discard = 0;
2105             ost->sync_ist = (nb_stream_maps > 0) ?
2106                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2107                          stream_maps[n].sync_stream_index] : ist;
2108         }
2109     }
2110
2111     /* for each output stream, we compute the right encoding parameters */
2112     for(i=0;i<nb_ostreams;i++) {
2113         AVMetadataTag *t = NULL;
2114         ost = ost_table[i];
2115         os = output_files[ost->file_index];
2116         ist = ist_table[ost->source_index];
2117
2118         codec = ost->st->codec;
2119         icodec = ist->st->codec;
2120
2121         if (metadata_streams_autocopy)
2122             while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2123                 av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2124             }
2125
2126         ost->st->disposition = ist->st->disposition;
2127         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2128         codec->chroma_sample_location = icodec->chroma_sample_location;
2129
2130         if (ost->st->stream_copy) {
2131             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2132
2133             if (extra_size > INT_MAX)
2134                 goto fail;
2135
2136             /* if stream_copy is selected, no need to decode or encode */
2137             codec->codec_id = icodec->codec_id;
2138             codec->codec_type = icodec->codec_type;
2139
2140             if(!codec->codec_tag){
2141                 if(   !os->oformat->codec_tag
2142                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2143                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2144                     codec->codec_tag = icodec->codec_tag;
2145             }
2146
2147             codec->bit_rate = icodec->bit_rate;
2148             codec->rc_max_rate    = icodec->rc_max_rate;
2149             codec->rc_buffer_size = icodec->rc_buffer_size;
2150             codec->extradata= av_mallocz(extra_size);
2151             if (!codec->extradata)
2152                 goto fail;
2153             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2154             codec->extradata_size= icodec->extradata_size;
2155             if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2156                 codec->time_base = icodec->time_base;
2157                 codec->time_base.num *= icodec->ticks_per_frame;
2158                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2159                           codec->time_base.num, codec->time_base.den, INT_MAX);
2160             }else
2161                 codec->time_base = ist->st->time_base;
2162             switch(codec->codec_type) {
2163             case AVMEDIA_TYPE_AUDIO:
2164                 if(audio_volume != 256) {
2165                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2166                     ffmpeg_exit(1);
2167                 }
2168                 codec->channel_layout = icodec->channel_layout;
2169                 codec->sample_rate = icodec->sample_rate;
2170                 codec->channels = icodec->channels;
2171                 codec->frame_size = icodec->frame_size;
2172                 codec->block_align= icodec->block_align;
2173                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2174                     codec->block_align= 0;
2175                 if(codec->codec_id == CODEC_ID_AC3)
2176                     codec->block_align= 0;
2177                 break;
2178             case AVMEDIA_TYPE_VIDEO:
2179                 codec->pix_fmt = icodec->pix_fmt;
2180                 codec->width = icodec->width;
2181                 codec->height = icodec->height;
2182                 codec->has_b_frames = icodec->has_b_frames;
2183                 break;
2184             case AVMEDIA_TYPE_SUBTITLE:
2185                 codec->width = icodec->width;
2186                 codec->height = icodec->height;
2187                 break;
2188             default:
2189                 abort();
2190             }
2191         } else {
2192             switch(codec->codec_type) {
2193             case AVMEDIA_TYPE_AUDIO:
2194                 ost->fifo= av_fifo_alloc(1024);
2195                 if(!ost->fifo)
2196                     goto fail;
2197                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2198                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2199                 icodec->request_channels = codec->channels;
2200                 ist->decoding_needed = 1;
2201                 ost->encoding_needed = 1;
2202                 ost->resample_sample_fmt  = icodec->sample_fmt;
2203                 ost->resample_sample_rate = icodec->sample_rate;
2204                 ost->resample_channels    = icodec->channels;
2205                 break;
2206             case AVMEDIA_TYPE_VIDEO:
2207                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2208                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2209                     ffmpeg_exit(1);
2210                 }
2211                 ost->video_resample = (codec->width != icodec->width   ||
2212                                        codec->height != icodec->height ||
2213                         (codec->pix_fmt != icodec->pix_fmt));
2214                 if (ost->video_resample) {
2215                     avcodec_get_frame_defaults(&ost->pict_tmp);
2216                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2217                                          codec->width, codec->height)) {
2218                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2219                         ffmpeg_exit(1);
2220                     }
2221                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2222                     ost->img_resample_ctx = sws_getContext(
2223                         icodec->width,
2224                         icodec->height,
2225                             icodec->pix_fmt,
2226                             codec->width,
2227                             codec->height,
2228                             codec->pix_fmt,
2229                             sws_flags, NULL, NULL, NULL);
2230                     if (ost->img_resample_ctx == NULL) {
2231                         fprintf(stderr, "Cannot get resampling context\n");
2232                         ffmpeg_exit(1);
2233                     }
2234
2235 #if !CONFIG_AVFILTER
2236                     ost->original_height = icodec->height;
2237                     ost->original_width  = icodec->width;
2238 #endif
2239                     codec->bits_per_raw_sample= 0;
2240                 }
2241                 ost->resample_height = icodec->height;
2242                 ost->resample_width  = icodec->width;
2243                 ost->resample_pix_fmt= icodec->pix_fmt;
2244                 ost->encoding_needed = 1;
2245                 ist->decoding_needed = 1;
2246
2247 #if CONFIG_AVFILTER
2248                 if (configure_filters(ist, ost)) {
2249                     fprintf(stderr, "Error opening filters!\n");
2250                     exit(1);
2251                 }
2252 #endif
2253                 break;
2254             case AVMEDIA_TYPE_SUBTITLE:
2255                 ost->encoding_needed = 1;
2256                 ist->decoding_needed = 1;
2257                 break;
2258             default:
2259                 abort();
2260                 break;
2261             }
2262             /* two pass mode */
2263             if (ost->encoding_needed &&
2264                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2265                 char logfilename[1024];
2266                 FILE *f;
2267
2268                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2269                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2270                          i);
2271                 if (codec->flags & CODEC_FLAG_PASS1) {
2272                     f = fopen(logfilename, "wb");
2273                     if (!f) {
2274                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2275                         ffmpeg_exit(1);
2276                     }
2277                     ost->logfile = f;
2278                 } else {
2279                     char  *logbuffer;
2280                     size_t logbuffer_size;
2281                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2282                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2283                         ffmpeg_exit(1);
2284                     }
2285                     codec->stats_in = logbuffer;
2286                 }
2287             }
2288         }
2289         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2290             int size= codec->width * codec->height;
2291             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2292         }
2293     }
2294
2295     if (!bit_buffer)
2296         bit_buffer = av_malloc(bit_buffer_size);
2297     if (!bit_buffer) {
2298         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2299                 bit_buffer_size);
2300         ret = AVERROR(ENOMEM);
2301         goto fail;
2302     }
2303
2304     /* open each encoder */
2305     for(i=0;i<nb_ostreams;i++) {
2306         ost = ost_table[i];
2307         if (ost->encoding_needed) {
2308             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2309             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2310             if (!codec)
2311                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2312             if (!codec) {
2313                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2314                          ost->st->codec->codec_id, ost->file_index, ost->index);
2315                 ret = AVERROR(EINVAL);
2316                 goto dump_format;
2317             }
2318             if (dec->subtitle_header) {
2319                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2320                 if (!ost->st->codec->subtitle_header) {
2321                     ret = AVERROR(ENOMEM);
2322                     goto dump_format;
2323                 }
2324                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2325                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2326             }
2327             if (avcodec_open(ost->st->codec, codec) < 0) {
2328                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2329                         ost->file_index, ost->index);
2330                 ret = AVERROR(EINVAL);
2331                 goto dump_format;
2332             }
2333             extra_size += ost->st->codec->extradata_size;
2334         }
2335     }
2336
2337     /* open each decoder */
2338     for(i=0;i<nb_istreams;i++) {
2339         ist = ist_table[i];
2340         if (ist->decoding_needed) {
2341             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2342             if (!codec)
2343                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2344             if (!codec) {
2345                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2346                         ist->st->codec->codec_id, ist->file_index, ist->index);
2347                 ret = AVERROR(EINVAL);
2348                 goto dump_format;
2349             }
2350             if (avcodec_open(ist->st->codec, codec) < 0) {
2351                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2352                         ist->file_index, ist->index);
2353                 ret = AVERROR(EINVAL);
2354                 goto dump_format;
2355             }
2356             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2357             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2358         }
2359     }
2360
2361     /* init pts */
2362     for(i=0;i<nb_istreams;i++) {
2363         AVStream *st;
2364         ist = ist_table[i];
2365         st= ist->st;
2366         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2367         ist->next_pts = AV_NOPTS_VALUE;
2368         init_pts_correction(&ist->pts_ctx);
2369         ist->is_start = 1;
2370     }
2371
2372     /* set meta data information from input file if required */
2373     for (i=0;i<nb_meta_data_maps;i++) {
2374         AVFormatContext *files[2];
2375         AVMetadata      **meta[2];
2376         AVMetadataTag *mtag;
2377         int j;
2378
2379 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2380         if ((index) < 0 || (index) >= (nb_elems)) {\
2381             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2382                      (desc), (index));\
2383             ret = AVERROR(EINVAL);\
2384             goto dump_format;\
2385         }
2386
2387         int out_file_index = meta_data_maps[i][0].file;
2388         int in_file_index = meta_data_maps[i][1].file;
2389         if (in_file_index < 0 || out_file_index < 0)
2390             continue;
2391         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2392         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2393
2394         files[0] = output_files[out_file_index];
2395         files[1] = input_files[in_file_index];
2396
2397         for (j = 0; j < 2; j++) {
2398             AVMetaDataMap *map = &meta_data_maps[i][j];
2399
2400             switch (map->type) {
2401             case 'g':
2402                 meta[j] = &files[j]->metadata;
2403                 break;
2404             case 's':
2405                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2406                 meta[j] = &files[j]->streams[map->index]->metadata;
2407                 break;
2408             case 'c':
2409                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2410                 meta[j] = &files[j]->chapters[map->index]->metadata;
2411                 break;
2412             case 'p':
2413                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2414                 meta[j] = &files[j]->programs[map->index]->metadata;
2415                 break;
2416             }
2417         }
2418
2419         mtag=NULL;
2420         while((mtag=av_metadata_get(*meta[1], "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2421             av_metadata_set2(meta[0], mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2422     }
2423
2424     /* copy global metadata by default */
2425     if (metadata_global_autocopy) {
2426         AVMetadataTag *t = NULL;
2427
2428         while ((t = av_metadata_get(input_files[0]->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
2429             for (i = 0; i < nb_output_files; i++)
2430                 av_metadata_set2(&output_files[i]->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2431     }
2432
2433     /* copy chapters according to chapter maps */
2434     for (i = 0; i < nb_chapter_maps; i++) {
2435         int infile  = chapter_maps[i].in_file;
2436         int outfile = chapter_maps[i].out_file;
2437
2438         if (infile < 0 || outfile < 0)
2439             continue;
2440         if (infile >= nb_input_files) {
2441             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2442             ret = AVERROR(EINVAL);
2443             goto dump_format;
2444         }
2445         if (outfile >= nb_output_files) {
2446             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2447             ret = AVERROR(EINVAL);
2448             goto dump_format;
2449         }
2450         copy_chapters(infile, outfile);
2451     }
2452
2453     /* copy chapters from the first input file that has them*/
2454     if (!nb_chapter_maps)
2455         for (i = 0; i < nb_input_files; i++) {
2456             if (!input_files[i]->nb_chapters)
2457                 continue;
2458
2459             for (j = 0; j < nb_output_files; j++)
2460                 if ((ret = copy_chapters(i, j)) < 0)
2461                     goto dump_format;
2462             break;
2463         }
2464
2465     /* open files and write file headers */
2466     for(i=0;i<nb_output_files;i++) {
2467         os = output_files[i];
2468         if (av_write_header(os) < 0) {
2469             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2470             ret = AVERROR(EINVAL);
2471             goto dump_format;
2472         }
2473         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2474             want_sdp = 0;
2475         }
2476     }
2477
2478  dump_format:
2479     /* dump the file output parameters - cannot be done before in case
2480        of stream copy */
2481     for(i=0;i<nb_output_files;i++) {
2482         dump_format(output_files[i], i, output_files[i]->filename, 1);
2483     }
2484
2485     /* dump the stream mapping */
2486     if (verbose >= 0) {
2487         fprintf(stderr, "Stream mapping:\n");
2488         for(i=0;i<nb_ostreams;i++) {
2489             ost = ost_table[i];
2490             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2491                     ist_table[ost->source_index]->file_index,
2492                     ist_table[ost->source_index]->index,
2493                     ost->file_index,
2494                     ost->index);
2495             if (ost->sync_ist != ist_table[ost->source_index])
2496                 fprintf(stderr, " [sync #%d.%d]",
2497                         ost->sync_ist->file_index,
2498                         ost->sync_ist->index);
2499             fprintf(stderr, "\n");
2500         }
2501     }
2502
2503     if (ret) {
2504         fprintf(stderr, "%s\n", error);
2505         goto fail;
2506     }
2507
2508     if (want_sdp) {
2509         print_sdp(output_files, nb_output_files);
2510     }
2511
2512     if (!using_stdin && verbose >= 0) {
2513         fprintf(stderr, "Press [q] to stop encoding\n");
2514         url_set_interrupt_cb(decode_interrupt_cb);
2515     }
2516     term_init();
2517
2518     timer_start = av_gettime();
2519
2520     for(; received_sigterm == 0;) {
2521         int file_index, ist_index;
2522         AVPacket pkt;
2523         double ipts_min;
2524         double opts_min;
2525
2526     redo:
2527         ipts_min= 1e100;
2528         opts_min= 1e100;
2529         /* if 'q' pressed, exits */
2530         if (!using_stdin) {
2531             if (q_pressed)
2532                 break;
2533             /* read_key() returns 0 on EOF */
2534             key = read_key();
2535             if (key == 'q')
2536                 break;
2537         }
2538
2539         /* select the stream that we must read now by looking at the
2540            smallest output pts */
2541         file_index = -1;
2542         for(i=0;i<nb_ostreams;i++) {
2543             double ipts, opts;
2544             ost = ost_table[i];
2545             os = output_files[ost->file_index];
2546             ist = ist_table[ost->source_index];
2547             if(ist->is_past_recording_time || no_packet[ist->file_index])
2548                 continue;
2549                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2550             ipts = (double)ist->pts;
2551             if (!file_table[ist->file_index].eof_reached){
2552                 if(ipts < ipts_min) {
2553                     ipts_min = ipts;
2554                     if(input_sync ) file_index = ist->file_index;
2555                 }
2556                 if(opts < opts_min) {
2557                     opts_min = opts;
2558                     if(!input_sync) file_index = ist->file_index;
2559                 }
2560             }
2561             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2562                 file_index= -1;
2563                 break;
2564             }
2565         }
2566         /* if none, if is finished */
2567         if (file_index < 0) {
2568             if(no_packet_count){
2569                 no_packet_count=0;
2570                 memset(no_packet, 0, sizeof(no_packet));
2571                 usleep(10000);
2572                 continue;
2573             }
2574             break;
2575         }
2576
2577         /* finish if limit size exhausted */
2578         if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2579             break;
2580
2581         /* read a frame from it and output it in the fifo */
2582         is = input_files[file_index];
2583         ret= av_read_frame(is, &pkt);
2584         if(ret == AVERROR(EAGAIN)){
2585             no_packet[file_index]=1;
2586             no_packet_count++;
2587             continue;
2588         }
2589         if (ret < 0) {
2590             file_table[file_index].eof_reached = 1;
2591             if (opt_shortest)
2592                 break;
2593             else
2594                 continue;
2595         }
2596
2597         no_packet_count=0;
2598         memset(no_packet, 0, sizeof(no_packet));
2599
2600         if (do_pkt_dump) {
2601             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2602         }
2603         /* the following test is needed in case new streams appear
2604            dynamically in stream : we ignore them */
2605         if (pkt.stream_index >= file_table[file_index].nb_streams)
2606             goto discard_packet;
2607         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2608         ist = ist_table[ist_index];
2609         if (ist->discard)
2610             goto discard_packet;
2611
2612         if (pkt.dts != AV_NOPTS_VALUE)
2613             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2614         if (pkt.pts != AV_NOPTS_VALUE)
2615             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2616
2617         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2618             && input_files_ts_scale[file_index][pkt.stream_index]){
2619             if(pkt.pts != AV_NOPTS_VALUE)
2620                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2621             if(pkt.dts != AV_NOPTS_VALUE)
2622                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2623         }
2624
2625 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2626         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2627             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2628             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2629             int64_t delta= pkt_dts - ist->next_pts;
2630             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2631                 input_files_ts_offset[ist->file_index]-= delta;
2632                 if (verbose > 2)
2633                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2634                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2635                 if(pkt.pts != AV_NOPTS_VALUE)
2636                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2637             }
2638         }
2639
2640         /* finish if recording time exhausted */
2641         if (recording_time != INT64_MAX &&
2642             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2643             ist->is_past_recording_time = 1;
2644             goto discard_packet;
2645         }
2646
2647         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2648         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2649
2650             if (verbose >= 0)
2651                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2652                         ist->file_index, ist->index);
2653             if (exit_on_error)
2654                 ffmpeg_exit(1);
2655             av_free_packet(&pkt);
2656             goto redo;
2657         }
2658
2659     discard_packet:
2660         av_free_packet(&pkt);
2661
2662         /* dump report by using the output first video and audio streams */
2663         print_report(output_files, ost_table, nb_ostreams, 0);
2664     }
2665
2666     /* at the end of stream, we must flush the decoder buffers */
2667     for(i=0;i<nb_istreams;i++) {
2668         ist = ist_table[i];
2669         if (ist->decoding_needed) {
2670             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2671         }
2672     }
2673
2674     term_exit();
2675
2676     /* write the trailer if needed and close file */
2677     for(i=0;i<nb_output_files;i++) {
2678         os = output_files[i];
2679         av_write_trailer(os);
2680     }
2681
2682     /* dump report by using the first video and audio streams */
2683     print_report(output_files, ost_table, nb_ostreams, 1);
2684
2685     /* close each encoder */
2686     for(i=0;i<nb_ostreams;i++) {
2687         ost = ost_table[i];
2688         if (ost->encoding_needed) {
2689             av_freep(&ost->st->codec->stats_in);
2690             avcodec_close(ost->st->codec);
2691         }
2692     }
2693
2694     /* close each decoder */
2695     for(i=0;i<nb_istreams;i++) {
2696         ist = ist_table[i];
2697         if (ist->decoding_needed) {
2698             avcodec_close(ist->st->codec);
2699         }
2700     }
2701 #if CONFIG_AVFILTER
2702     if (graph) {
2703         avfilter_graph_free(graph);
2704         av_freep(&graph);
2705     }
2706 #endif
2707
2708     /* finished ! */
2709     ret = 0;
2710
2711  fail:
2712     av_freep(&bit_buffer);
2713     av_free(file_table);
2714
2715     if (ist_table) {
2716         for(i=0;i<nb_istreams;i++) {
2717             ist = ist_table[i];
2718             av_free(ist);
2719         }
2720         av_free(ist_table);
2721     }
2722     if (ost_table) {
2723         for(i=0;i<nb_ostreams;i++) {
2724             ost = ost_table[i];
2725             if (ost) {
2726                 if (ost->st->stream_copy)
2727                     av_freep(&ost->st->codec->extradata);
2728                 if (ost->logfile) {
2729                     fclose(ost->logfile);
2730                     ost->logfile = NULL;
2731                 }
2732                 av_fifo_free(ost->fifo); /* works even if fifo is not
2733                                              initialized but set to zero */
2734                 av_freep(&ost->st->codec->subtitle_header);
2735                 av_free(ost->pict_tmp.data[0]);
2736                 av_free(ost->forced_kf_pts);
2737                 if (ost->video_resample)
2738                     sws_freeContext(ost->img_resample_ctx);
2739                 if (ost->resample)
2740                     audio_resample_close(ost->resample);
2741                 if (ost->reformat_ctx)
2742                     av_audio_convert_free(ost->reformat_ctx);
2743                 av_free(ost);
2744             }
2745         }
2746         av_free(ost_table);
2747     }
2748     return ret;
2749 }
2750
2751 static void opt_format(const char *arg)
2752 {
2753     last_asked_format = arg;
2754 }
2755
2756 static void opt_video_rc_override_string(const char *arg)
2757 {
2758     video_rc_override_string = arg;
2759 }
2760
2761 static int opt_me_threshold(const char *opt, const char *arg)
2762 {
2763     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2764     return 0;
2765 }
2766
2767 static int opt_verbose(const char *opt, const char *arg)
2768 {
2769     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2770     return 0;
2771 }
2772
2773 static int opt_frame_rate(const char *opt, const char *arg)
2774 {
2775     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2776         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2777         ffmpeg_exit(1);
2778     }
2779     return 0;
2780 }
2781
2782 static int opt_bitrate(const char *opt, const char *arg)
2783 {
2784     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2785
2786     opt_default(opt, arg);
2787
2788     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2789         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2790
2791     return 0;
2792 }
2793
2794 static int opt_frame_crop(const char *opt, const char *arg)
2795 {
2796     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2797     return AVERROR(EINVAL);
2798 }
2799
2800 static void opt_frame_size(const char *arg)
2801 {
2802     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2803         fprintf(stderr, "Incorrect frame size\n");
2804         ffmpeg_exit(1);
2805     }
2806 }
2807
2808 static int opt_pad(const char *opt, const char *arg) {
2809     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2810     return -1;
2811 }
2812
2813 static void opt_frame_pix_fmt(const char *arg)
2814 {
2815     if (strcmp(arg, "list")) {
2816         frame_pix_fmt = av_get_pix_fmt(arg);
2817         if (frame_pix_fmt == PIX_FMT_NONE) {
2818             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2819             ffmpeg_exit(1);
2820         }
2821     } else {
2822         show_pix_fmts();
2823         ffmpeg_exit(0);
2824     }
2825 }
2826
2827 static void opt_frame_aspect_ratio(const char *arg)
2828 {
2829     int x = 0, y = 0;
2830     double ar = 0;
2831     const char *p;
2832     char *end;
2833
2834     p = strchr(arg, ':');
2835     if (p) {
2836         x = strtol(arg, &end, 10);
2837         if (end == p)
2838             y = strtol(end+1, &end, 10);
2839         if (x > 0 && y > 0)
2840             ar = (double)x / (double)y;
2841     } else
2842         ar = strtod(arg, NULL);
2843
2844     if (!ar) {
2845         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2846         ffmpeg_exit(1);
2847     }
2848     frame_aspect_ratio = ar;
2849 }
2850
2851 static int opt_metadata(const char *opt, const char *arg)
2852 {
2853     char *mid= strchr(arg, '=');
2854
2855     if(!mid){
2856         fprintf(stderr, "Missing =\n");
2857         ffmpeg_exit(1);
2858     }
2859     *mid++= 0;
2860
2861     av_metadata_set2(&metadata, arg, mid, 0);
2862
2863     return 0;
2864 }
2865
2866 static void opt_qscale(const char *arg)
2867 {
2868     video_qscale = atof(arg);
2869     if (video_qscale <= 0 ||
2870         video_qscale > 255) {
2871         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2872         ffmpeg_exit(1);
2873     }
2874 }
2875
2876 static void opt_top_field_first(const char *arg)
2877 {
2878     top_field_first= atoi(arg);
2879 }
2880
2881 static int opt_thread_count(const char *opt, const char *arg)
2882 {
2883     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2884 #if !HAVE_THREADS
2885     if (verbose >= 0)
2886         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2887 #endif
2888     return 0;
2889 }
2890
2891 static void opt_audio_sample_fmt(const char *arg)
2892 {
2893     if (strcmp(arg, "list"))
2894         audio_sample_fmt = av_get_sample_fmt(arg);
2895     else {
2896         list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2897         ffmpeg_exit(0);
2898     }
2899 }
2900
2901 static int opt_audio_rate(const char *opt, const char *arg)
2902 {
2903     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2904     return 0;
2905 }
2906
2907 static int opt_audio_channels(const char *opt, const char *arg)
2908 {
2909     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2910     return 0;
2911 }
2912
2913 static void opt_video_channel(const char *arg)
2914 {
2915     video_channel = strtol(arg, NULL, 0);
2916 }
2917
2918 static void opt_video_standard(const char *arg)
2919 {
2920     video_standard = av_strdup(arg);
2921 }
2922
2923 static void opt_codec(int *pstream_copy, char **pcodec_name,
2924                       int codec_type, const char *arg)
2925 {
2926     av_freep(pcodec_name);
2927     if (!strcmp(arg, "copy")) {
2928         *pstream_copy = 1;
2929     } else {
2930         *pcodec_name = av_strdup(arg);
2931     }
2932 }
2933
2934 static void opt_audio_codec(const char *arg)
2935 {
2936     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2937 }
2938
2939 static void opt_video_codec(const char *arg)
2940 {
2941     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2942 }
2943
2944 static void opt_subtitle_codec(const char *arg)
2945 {
2946     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2947 }
2948
2949 static int opt_codec_tag(const char *opt, const char *arg)
2950 {
2951     char *tail;
2952     uint32_t *codec_tag;
2953
2954     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2955                 !strcmp(opt, "vtag") ? &video_codec_tag :
2956                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2957     if (!codec_tag)
2958         return -1;
2959
2960     *codec_tag = strtol(arg, &tail, 0);
2961     if (!tail || *tail)
2962         *codec_tag = AV_RL32(arg);
2963
2964     return 0;
2965 }
2966
2967 static void opt_map(const char *arg)
2968 {
2969     AVStreamMap *m;
2970     char *p;
2971
2972     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2973     m = &stream_maps[nb_stream_maps-1];
2974
2975     m->file_index = strtol(arg, &p, 0);
2976     if (*p)
2977         p++;
2978
2979     m->stream_index = strtol(p, &p, 0);
2980     if (*p) {
2981         p++;
2982         m->sync_file_index = strtol(p, &p, 0);
2983         if (*p)
2984             p++;
2985         m->sync_stream_index = strtol(p, &p, 0);
2986     } else {
2987         m->sync_file_index = m->file_index;
2988         m->sync_stream_index = m->stream_index;
2989     }
2990 }
2991
2992 static void parse_meta_type(const char *arg, char *type, int *index, char **endptr)
2993 {
2994     *endptr = arg;
2995     if (*arg == ',') {
2996         *type = *(++arg);
2997         switch (*arg) {
2998         case 'g':
2999             break;
3000         case 's':
3001         case 'c':
3002         case 'p':
3003             *index = strtol(++arg, endptr, 0);
3004             break;
3005         default:
3006             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3007             ffmpeg_exit(1);
3008         }
3009     } else
3010         *type = 'g';
3011 }
3012
3013 static void opt_map_meta_data(const char *arg)
3014 {
3015     AVMetaDataMap *m, *m1;
3016     char *p;
3017
3018     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3019                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3020
3021     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3022     m->file = strtol(arg, &p, 0);
3023     parse_meta_type(p, &m->type, &m->index, &p);
3024     if (*p)
3025         p++;
3026
3027     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3028     m1->file = strtol(p, &p, 0);
3029     parse_meta_type(p, &m1->type, &m1->index, &p);
3030
3031     if (m->type == 'g' || m1->type == 'g')
3032         metadata_global_autocopy = 0;
3033     if (m->type == 's' || m1->type == 's')
3034         metadata_streams_autocopy = 0;
3035     if (m->type == 'c' || m1->type == 'c')
3036         metadata_chapters_autocopy = 0;
3037 }
3038
3039 static void opt_map_chapters(const char *arg)
3040 {
3041     AVChapterMap *c;
3042     char *p;
3043
3044     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3045                               nb_chapter_maps + 1);
3046     c = &chapter_maps[nb_chapter_maps - 1];
3047     c->out_file = strtol(arg, &p, 0);
3048     if (*p)
3049         p++;
3050
3051     c->in_file = strtol(p, &p, 0);
3052 }
3053
3054 static void opt_input_ts_scale(const char *arg)
3055 {
3056     unsigned int stream;
3057     double scale;
3058     char *p;
3059
3060     stream = strtol(arg, &p, 0);
3061     if (*p)
3062         p++;
3063     scale= strtod(p, &p);
3064
3065     if(stream >= MAX_STREAMS)
3066         ffmpeg_exit(1);
3067
3068     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3069     input_files_ts_scale[nb_input_files][stream]= scale;
3070 }
3071
3072 static int opt_recording_time(const char *opt, const char *arg)
3073 {
3074     recording_time = parse_time_or_die(opt, arg, 1);
3075     return 0;
3076 }
3077
3078 static int opt_start_time(const char *opt, const char *arg)
3079 {
3080     start_time = parse_time_or_die(opt, arg, 1);
3081     return 0;
3082 }
3083
3084 static int opt_recording_timestamp(const char *opt, const char *arg)
3085 {
3086     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3087     return 0;
3088 }
3089
3090 static int opt_input_ts_offset(const char *opt, const char *arg)
3091 {
3092     input_ts_offset = parse_time_or_die(opt, arg, 1);
3093     return 0;
3094 }
3095
3096 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3097 {
3098     const char *codec_string = encoder ? "encoder" : "decoder";
3099     AVCodec *codec;
3100
3101     if(!name)
3102         return CODEC_ID_NONE;
3103     codec = encoder ?
3104         avcodec_find_encoder_by_name(name) :
3105         avcodec_find_decoder_by_name(name);
3106     if(!codec) {
3107         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3108         ffmpeg_exit(1);
3109     }
3110     if(codec->type != type) {
3111         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3112         ffmpeg_exit(1);
3113     }
3114     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3115        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3116         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3117                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3118                 codec_string, codec->name);
3119         codec = encoder ?
3120             avcodec_find_encoder(codec->id) :
3121             avcodec_find_decoder(codec->id);
3122         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3123             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3124                     codec_string, codec->name);
3125         ffmpeg_exit(1);
3126     }
3127     return codec->id;
3128 }
3129
3130 static void opt_input_file(const char *filename)
3131 {
3132     AVFormatContext *ic;
3133     AVFormatParameters params, *ap = &params;
3134     AVInputFormat *file_iformat = NULL;
3135     int err, i, ret, rfps, rfps_base;
3136     int64_t timestamp;
3137
3138     if (last_asked_format) {
3139         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3140             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3141             ffmpeg_exit(1);
3142         }
3143         last_asked_format = NULL;
3144     }
3145
3146     if (!strcmp(filename, "-"))
3147         filename = "pipe:";
3148
3149     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3150                     !strcmp(filename, "/dev/stdin");
3151
3152     /* get default parameters from command line */
3153     ic = avformat_alloc_context();
3154     if (!ic) {
3155         print_error(filename, AVERROR(ENOMEM));
3156         ffmpeg_exit(1);
3157     }
3158
3159     memset(ap, 0, sizeof(*ap));
3160     ap->prealloced_context = 1;
3161     ap->sample_rate = audio_sample_rate;
3162     ap->channels = audio_channels;
3163     ap->time_base.den = frame_rate.num;
3164     ap->time_base.num = frame_rate.den;
3165     ap->width = frame_width;
3166     ap->height = frame_height;
3167     ap->pix_fmt = frame_pix_fmt;
3168    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3169     ap->channel = video_channel;
3170     ap->standard = video_standard;
3171
3172     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3173
3174     ic->video_codec_id   =
3175         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3176                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3177     ic->audio_codec_id   =
3178         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3179                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3180     ic->subtitle_codec_id=
3181         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3182                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3183     ic->flags |= AVFMT_FLAG_NONBLOCK;
3184
3185     /* open the input file with generic libav function */
3186     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3187     if (err < 0) {
3188         print_error(filename, err);
3189         ffmpeg_exit(1);
3190     }
3191     if(opt_programid) {
3192         int i, j;
3193         int found=0;
3194         for(i=0; i<ic->nb_streams; i++){
3195             ic->streams[i]->discard= AVDISCARD_ALL;
3196         }
3197         for(i=0; i<ic->nb_programs; i++){
3198             AVProgram *p= ic->programs[i];
3199             if(p->id != opt_programid){
3200                 p->discard = AVDISCARD_ALL;
3201             }else{
3202                 found=1;
3203                 for(j=0; j<p->nb_stream_indexes; j++){
3204                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3205                 }
3206             }
3207         }
3208         if(!found){
3209             fprintf(stderr, "Specified program id not found\n");
3210             ffmpeg_exit(1);
3211         }
3212         opt_programid=0;
3213     }
3214
3215     ic->loop_input = loop_input;
3216
3217     /* If not enough info to get the stream parameters, we decode the
3218        first frames to get it. (used in mpeg case for example) */
3219     ret = av_find_stream_info(ic);
3220     if (ret < 0 && verbose >= 0) {
3221         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3222         av_close_input_file(ic);
3223         ffmpeg_exit(1);
3224     }
3225
3226     timestamp = start_time;
3227     /* add the stream start time */
3228     if (ic->start_time != AV_NOPTS_VALUE)
3229         timestamp += ic->start_time;
3230
3231     /* if seeking requested, we execute it */
3232     if (start_time != 0) {
3233         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3234         if (ret < 0) {
3235             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3236                     filename, (double)timestamp / AV_TIME_BASE);
3237         }
3238         /* reset seek info */
3239         start_time = 0;
3240     }
3241
3242     /* update the current parameters so that they match the one of the input stream */
3243     for(i=0;i<ic->nb_streams;i++) {
3244         AVStream *st = ic->streams[i];
3245         AVCodecContext *dec = st->codec;
3246         avcodec_thread_init(dec, thread_count);
3247         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3248         switch (dec->codec_type) {
3249         case AVMEDIA_TYPE_AUDIO:
3250             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3251             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3252             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3253             channel_layout    = dec->channel_layout;
3254             audio_channels    = dec->channels;
3255             audio_sample_rate = dec->sample_rate;
3256             audio_sample_fmt  = dec->sample_fmt;
3257             if(audio_disable)
3258                 st->discard= AVDISCARD_ALL;
3259             /* Note that av_find_stream_info can add more streams, and we
3260              * currently have no chance of setting up lowres decoding
3261              * early enough for them. */
3262             if (dec->lowres)
3263                 audio_sample_rate >>= dec->lowres;
3264             break;
3265         case AVMEDIA_TYPE_VIDEO:
3266             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3267             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3268             frame_height = dec->height;
3269             frame_width  = dec->width;
3270             if(ic->streams[i]->sample_aspect_ratio.num)
3271                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3272             else
3273                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3274             frame_aspect_ratio *= (float) dec->width / dec->height;
3275             frame_pix_fmt = dec->pix_fmt;
3276             rfps      = ic->streams[i]->r_frame_rate.num;
3277             rfps_base = ic->streams[i]->r_frame_rate.den;
3278             if (dec->lowres) {
3279                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3280                 frame_height >>= dec->lowres;
3281                 frame_width  >>= dec->lowres;
3282             }
3283             if(me_threshold)
3284                 dec->debug |= FF_DEBUG_MV;
3285
3286             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3287
3288                 if (verbose >= 0)
3289                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3290                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3291
3292                     (float)rfps / rfps_base, rfps, rfps_base);
3293             }
3294             /* update the current frame rate to match the stream frame rate */
3295             frame_rate.num = rfps;
3296             frame_rate.den = rfps_base;
3297
3298             if(video_disable)
3299                 st->discard= AVDISCARD_ALL;
3300             else if(video_discard)
3301                 st->discard= video_discard;
3302             break;
3303         case AVMEDIA_TYPE_DATA:
3304             break;
3305         case AVMEDIA_TYPE_SUBTITLE:
3306             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3307             if(subtitle_disable)
3308                 st->discard = AVDISCARD_ALL;
3309             break;
3310         case AVMEDIA_TYPE_ATTACHMENT:
3311         case AVMEDIA_TYPE_UNKNOWN:
3312             break;
3313         default:
3314             abort();
3315         }
3316     }
3317
3318     input_files[nb_input_files] = ic;
3319     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3320     /* dump the file content */
3321     if (verbose >= 0)
3322         dump_format(ic, nb_input_files, filename, 0);
3323
3324     nb_input_files++;
3325
3326     video_channel = 0;
3327
3328     av_freep(&video_codec_name);
3329     av_freep(&audio_codec_name);
3330     av_freep(&subtitle_codec_name);
3331 }
3332
3333 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3334                                          int *has_subtitle_ptr)
3335 {
3336     int has_video, has_audio, has_subtitle, i, j;
3337     AVFormatContext *ic;
3338
3339     has_video = 0;
3340     has_audio = 0;
3341     has_subtitle = 0;
3342     for(j=0;j<nb_input_files;j++) {
3343         ic = input_files[j];
3344         for(i=0;i<ic->nb_streams;i++) {
3345             AVCodecContext *enc = ic->streams[i]->codec;
3346             switch(enc->codec_type) {
3347             case AVMEDIA_TYPE_AUDIO:
3348                 has_audio = 1;
3349                 break;
3350             case AVMEDIA_TYPE_VIDEO:
3351                 has_video = 1;
3352                 break;
3353             case AVMEDIA_TYPE_SUBTITLE:
3354                 has_subtitle = 1;
3355                 break;
3356             case AVMEDIA_TYPE_DATA:
3357             case AVMEDIA_TYPE_ATTACHMENT:
3358             case AVMEDIA_TYPE_UNKNOWN:
3359                 break;
3360             default:
3361                 abort();
3362             }
3363         }
3364     }
3365     *has_video_ptr = has_video;
3366     *has_audio_ptr = has_audio;
3367     *has_subtitle_ptr = has_subtitle;
3368 }
3369
3370 static void new_video_stream(AVFormatContext *oc, int file_idx)
3371 {
3372     AVStream *st;
3373     AVOutputStream *ost;
3374     AVCodecContext *video_enc;
3375     enum CodecID codec_id;
3376     AVCodec *codec= NULL;
3377
3378     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3379     if (!st) {
3380         fprintf(stderr, "Could not alloc stream\n");
3381         ffmpeg_exit(1);
3382     }
3383     ost = new_output_stream(oc, file_idx);
3384
3385     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3386     if(!video_stream_copy){
3387         if (video_codec_name) {
3388             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3389                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3390             codec = avcodec_find_encoder_by_name(video_codec_name);
3391             output_codecs[nb_output_codecs-1] = codec;
3392         } else {
3393             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3394             codec = avcodec_find_encoder(codec_id);
3395         }
3396     }
3397
3398     avcodec_get_context_defaults3(st->codec, codec);
3399     ost->bitstream_filters = video_bitstream_filters;
3400     video_bitstream_filters= NULL;
3401
3402     avcodec_thread_init(st->codec, thread_count);
3403
3404     video_enc = st->codec;
3405
3406     if(video_codec_tag)
3407         video_enc->codec_tag= video_codec_tag;
3408
3409     if(   (video_global_header&1)
3410        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3411         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3412         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3413     }
3414     if(video_global_header&2){
3415         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3416         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3417     }
3418
3419     if (video_stream_copy) {
3420         st->stream_copy = 1;
3421         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3422         video_enc->sample_aspect_ratio =
3423         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3424     } else {
3425         const char *p;
3426         int i;
3427         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3428
3429         video_enc->codec_id = codec_id;
3430         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3431
3432         if (codec && codec->supported_framerates && !force_fps)
3433             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3434         video_enc->time_base.den = fps.num;
3435         video_enc->time_base.num = fps.den;
3436
3437         video_enc->width = frame_width;
3438         video_enc->height = frame_height;
3439         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3440         video_enc->pix_fmt = frame_pix_fmt;
3441         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3442
3443         choose_pixel_fmt(st, codec);
3444
3445         if (intra_only)
3446             video_enc->gop_size = 0;
3447         if (video_qscale || same_quality) {
3448             video_enc->flags |= CODEC_FLAG_QSCALE;
3449             video_enc->global_quality=
3450                 st->quality = FF_QP2LAMBDA * video_qscale;
3451         }
3452
3453         if(intra_matrix)
3454             video_enc->intra_matrix = intra_matrix;
3455         if(inter_matrix)
3456             video_enc->inter_matrix = inter_matrix;
3457
3458         p= video_rc_override_string;
3459         for(i=0; p; i++){
3460             int start, end, q;
3461             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3462             if(e!=3){
3463                 fprintf(stderr, "error parsing rc_override\n");
3464                 ffmpeg_exit(1);
3465             }
3466             video_enc->rc_override=
3467                 av_realloc(video_enc->rc_override,
3468                            sizeof(RcOverride)*(i+1));
3469             video_enc->rc_override[i].start_frame= start;
3470             video_enc->rc_override[i].end_frame  = end;
3471             if(q>0){
3472                 video_enc->rc_override[i].qscale= q;
3473                 video_enc->rc_override[i].quality_factor= 1.0;
3474             }
3475             else{
3476                 video_enc->rc_override[i].qscale= 0;
3477                 video_enc->rc_override[i].quality_factor= -q/100.0;
3478             }
3479             p= strchr(p, '/');
3480             if(p) p++;
3481         }
3482         video_enc->rc_override_count=i;
3483         if (!video_enc->rc_initial_buffer_occupancy)
3484             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3485         video_enc->me_threshold= me_threshold;
3486         video_enc->intra_dc_precision= intra_dc_precision - 8;
3487
3488         if (do_psnr)
3489             video_enc->flags|= CODEC_FLAG_PSNR;
3490
3491         /* two pass mode */
3492         if (do_pass) {
3493             if (do_pass == 1) {
3494                 video_enc->flags |= CODEC_FLAG_PASS1;
3495             } else {
3496                 video_enc->flags |= CODEC_FLAG_PASS2;
3497             }
3498         }
3499
3500         if (forced_key_frames)
3501             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3502     }
3503     if (video_language) {
3504         av_metadata_set2(&st->metadata, "language", video_language, 0);
3505         av_freep(&video_language);
3506     }
3507
3508     /* reset some key parameters */
3509     video_disable = 0;
3510     av_freep(&video_codec_name);
3511     av_freep(&forced_key_frames);
3512     video_stream_copy = 0;
3513     frame_pix_fmt = PIX_FMT_NONE;
3514 }
3515
3516 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3517 {
3518     AVStream *st;
3519     AVOutputStream *ost;
3520     AVCodec *codec= NULL;
3521     AVCodecContext *audio_enc;
3522     enum CodecID codec_id;
3523
3524     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3525     if (!st) {
3526         fprintf(stderr, "Could not alloc stream\n");
3527         ffmpeg_exit(1);
3528     }
3529     ost = new_output_stream(oc, file_idx);
3530
3531     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3532     if(!audio_stream_copy){
3533         if (audio_codec_name) {
3534             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3535                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3536             codec = avcodec_find_encoder_by_name(audio_codec_name);
3537             output_codecs[nb_output_codecs-1] = codec;
3538         } else {
3539             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3540             codec = avcodec_find_encoder(codec_id);
3541         }
3542     }
3543
3544     avcodec_get_context_defaults3(st->codec, codec);
3545
3546     ost->bitstream_filters = audio_bitstream_filters;
3547     audio_bitstream_filters= NULL;
3548
3549     avcodec_thread_init(st->codec, thread_count);
3550
3551     audio_enc = st->codec;
3552     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3553
3554     if(audio_codec_tag)
3555         audio_enc->codec_tag= audio_codec_tag;
3556
3557     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3558         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3559         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3560     }
3561     if (audio_stream_copy) {
3562         st->stream_copy = 1;
3563         audio_enc->channels = audio_channels;
3564         audio_enc->sample_rate = audio_sample_rate;
3565     } else {
3566         audio_enc->codec_id = codec_id;
3567         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3568
3569         if (audio_qscale > QSCALE_NONE) {
3570             audio_enc->flags |= CODEC_FLAG_QSCALE;
3571             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3572         }
3573         audio_enc->channels = audio_channels;
3574         audio_enc->sample_fmt = audio_sample_fmt;
3575         audio_enc->sample_rate = audio_sample_rate;
3576         audio_enc->channel_layout = channel_layout;
3577         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3578             audio_enc->channel_layout = 0;
3579         choose_sample_fmt(st, codec);
3580         choose_sample_rate(st, codec);
3581     }
3582     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3583     if (audio_language) {
3584         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3585         av_freep(&audio_language);
3586     }
3587
3588     /* reset some key parameters */
3589     audio_disable = 0;
3590     av_freep(&audio_codec_name);
3591     audio_stream_copy = 0;
3592 }
3593
3594 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3595 {
3596     AVStream *st;
3597     AVOutputStream *ost;
3598     AVCodec *codec=NULL;
3599     AVCodecContext *subtitle_enc;
3600     enum CodecID codec_id;
3601
3602     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3603     if (!st) {
3604         fprintf(stderr, "Could not alloc stream\n");
3605         ffmpeg_exit(1);
3606     }
3607     ost = new_output_stream(oc, file_idx);
3608     subtitle_enc = st->codec;
3609     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3610     if(!subtitle_stream_copy){
3611         if (subtitle_codec_name) {
3612             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3613                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3614             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3615         } else {
3616             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3617             codec = avcodec_find_encoder(codec_id);
3618         }
3619     }
3620     avcodec_get_context_defaults3(st->codec, codec);
3621
3622     ost->bitstream_filters = subtitle_bitstream_filters;
3623     subtitle_bitstream_filters= NULL;
3624
3625     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3626
3627     if(subtitle_codec_tag)
3628         subtitle_enc->codec_tag= subtitle_codec_tag;
3629
3630     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3631         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3632         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3633     }
3634     if (subtitle_stream_copy) {
3635         st->stream_copy = 1;
3636     } else {
3637         subtitle_enc->codec_id = codec_id;
3638         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3639     }
3640
3641     if (subtitle_language) {
3642         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3643         av_freep(&subtitle_language);
3644     }
3645
3646     subtitle_disable = 0;
3647     av_freep(&subtitle_codec_name);
3648     subtitle_stream_copy = 0;
3649 }
3650
3651 static int opt_new_stream(const char *opt, const char *arg)
3652 {
3653     AVFormatContext *oc;
3654     int file_idx = nb_output_files - 1;
3655     if (nb_output_files <= 0) {
3656         fprintf(stderr, "At least one output file must be specified\n");
3657         ffmpeg_exit(1);
3658     }
3659     oc = output_files[file_idx];
3660
3661     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3662     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3663     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3664     else av_assert0(0);
3665     return 0;
3666 }
3667
3668 /* arg format is "output-stream-index:streamid-value". */
3669 static int opt_streamid(const char *opt, const char *arg)
3670 {
3671     int idx;
3672     char *p;
3673     char idx_str[16];
3674
3675     strncpy(idx_str, arg, sizeof(idx_str));
3676     idx_str[sizeof(idx_str)-1] = '\0';